In structure $C$ of the possible products

from this experiment's Diels $-$ Alder

reaction there are four hydrogens attached

to the cyclopropane ring. How many total

non $-$ equivalent signals should be seen in

the $1HNMR$ as a result of these four

hydrogens? Remember to consider topicity

$($i$.$e$.$ homotopic, enantiotopic,

diastereotopic$)$ when determining your

answer.