Compare two fractions based on the whole that each one refers to.

Problem

While the bears were out, Goldilocks ate all but start fraction, 3, divided by, 8, end fraction of Papa Bear's big green cake off his plate.
Then she ate all but start fraction, 3, divided by, 8, end fraction of the smaller pink cake on Baby Bear's plate.
Whose plate had more cake left on it?
Please choose from one of the following options.