What is the functional reason the muscle group on the dorsal leg is so much larger than the muscle group in the ventral region of the leg?

The dorsal muscles in the legs are way larger than those at the ventral region of the leg because dorsal muscles work against gravity since it is located at the back which means a lot of force and muscle coordination is necessary in order for dorsal muscles to function. 

The right answer is b hydrogen bonds!

Some of her  assignments would be creation of drugs. she is a medical chemist after all so she'd need to have the necessary knowledge to make medicine which can later be sold in a pharmacy