Problem: Derrick's garden makes him a little money, while William's makes a lot, so

My choice: William is more likely to be the professional farmer.

Problem: Chemistry class was hard for Jessica but not Sarah because

My choice: Jessica hated studying sciences in school.

Problem: Carrie was more knowledgable about music than Felicia because

My choice: Carrie studied music theory in school.

Problem: Christine needed help from Erin to make a sofa cover because

My choice:
Erin owned a sewing machine.