PLEASE HELP! HURRY!

Maria has a job at the local store and earns $5 per hour. She spends one-third of each paycheck on books. If y represents the number of hours she works in a pay period , which expression represents the amount in dollars that she spends on books in each pay period?

A.) 3 times 5y

B.) 5/y times 3

C.) 5y/3

D.) 5y - 3