Hi! I'm new here! I'm stuck on this question in Social Studies. This is the final exam for the end of my semester! Please no fake answers!

What is the main work that goes on at the U.S. Capitol Building?

a. Legislators make the nation's laws

b. Government departments carry out federal laws

c. Justices decide if laws are constitutional

d. The president and vice president develop policy

( Since I'm new here I'm starting off by, giving away 30 points at the start hehe :D )