Mr. Hoops has a son who wants to be a basketball player almost as much as Mr. Hoops wants him to be one. Mr. Hoops knows a little bit about growth hormone and asks his son's doctor if she would prescribe some for his son, so that he can grow tall.
In order for Mr. Hoops' son to grow taller, administering which of the following hormones would be successful?
a) Insulin
b) Estrogen
c) Testosterone
d) Growth hormone