The main function of the legislative branch is to
a. create the law.
b. carry out the law.
c. interpret the law.
d. apply the law.

The main function of the Legislative Branch is to "create laws". The Founding Fathers wanted laws to originate in a branch of government that contained representatives from every state--to ensure equality and fairness. 

The answer should be b.

Ithink its c) the conditions in the factory have never been questioned by the employee.