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the ruins of the prehistoric Bolivian city of Tiahuanaco feature green andesite stones weighing up to 40 tons these stones were quarried at Copacabana which is across the lake and about 90 kilometres away archeologists hypothesized that the stones were brought to Tiahuanaco on reed boats to show this was possible experimenters transported a nine ton stone from Copacabana to Tiwanaku using a reed boat built with locally available materials and techniques traditional to the area which of the following would be most useful to know in order to evaluate the support for the archaeologists hypothesis so which would be most useful to know whether the traditional techniques for building reed boats were in use at the time Tiahuanaco was inhabited well that seems pretty useful these researchers they are using traditional techniques traditional to the area but we don't know for sure whether they were used at the time when p1 aku was inhabited if they weren't used at the time of Tiahuanaco was inhabited well that wouldn't be the way that the Tiwi not conds would have transported because they wouldn't have had those techniques so this one is looking looking pretty interesting let's see if we can rule out the other choices so would it be useful to know whether green andesite stones quarried at the time Tiahuanaco was inhabited were used at any site near Copacabana well no that wouldn't that be interesting but it's completely possible that Tiahuanaco was the only place maybe with some type of a sacred place where they took the trouble of bringing these 40-ton stones and that wasn't really important anywhere else so this one doesn't seem that this one doesn't seem like a good choice so would it would it be useful in order to support the archaeologists hypothesis would it be useful to know whether read boats are commonly used today on the lake well no we're talking about weather folks I'm assuming a long time ago use these reed boats at Tiahuanaco to bring these stones to Tiahuanaco it in fact would be it's interesting a free boat use today but it's very well they could be using modern boats and it has nothing to do with whether the Tiwi knockings used the reed boats whether the green andesite stones at Tiahuanaco are the largest stones at the site well know even if they aren't or are the largest stones that the site is tilled makes you want to ask the question how did these 40-ton stones get there so that doesn't and that doesn't help you think about how they how they got there whether the reed boat built for the experimenters is durable enough to remain usable for several years well know that the Tiwi knockings they might have even even if these reed boats weren't durable enough maybe for they do make one boat for every crossing of the lake just so to get one 40-ton stone across so this one that the durability doesn't seem to matter I would have been curious because the researchers transported a nine ton stone while they're talking about that there were stones weighing up to 40 tons it would be useful to know whether these techniques could be used to transport something that weighs 40 tons more than the 9 times this is a nice proof of concept but that wasn't the choices and so I do like choice a is the best answer what are the traditional techniques for building reed boats were even used at the time tihuanaco was in habit because if they weren't used then this hypothesis wouldn't carry a lot of weight so to speak