Example: Multiply and simplify (a²-4)/(a²-1) X (a+1)/(a+2).

Problem

Hunter and Gabriela were each asked to perform the following operation:
start fraction, y, plus, 3, divided by, 12, y, end fraction, divided by, start fraction, 4, y, plus, 3, divided by, 3, y, end fraction
Their responses are shown below.
HunterGabriela
start fraction, left parenthesis, y, plus, 3, right parenthesis, left parenthesis, 4, y, plus, 3, right parenthesis, divided by, 36, y, start superscript, 2, end superscript, end fractionstart fraction, 1, divided by, 12, y, end fraction
Are either of these students correct?
Please choose from one of the following options.