If you visit the senate chamber during a session on an average day, you're most likely to find the session presided over by
a: a president pro term
b: the vice president of the united states
c: the majority leader
d: a speaker for the house

If you visit the Senate chamber during a session on an average day, you're most likely to find the session presided over by the C) majority leader in the Senate. If not the majority leader it is a Senator that has been given that duty for a specific period of time. 

Different bathrooms for the colored