Annette plans to visit an amusement park where she must pay for admission and purchase tickets to go on the rides. Annette wants to find the total cost for a day at the amusement park. She wrote the equation c=1.50x+12 to predict c, the total cost for a day at the amusement park. What could the number 12 represent in Annette’s equation?

A: the number of rides

B: the cost of admission

C: the cost of each ticket

D: the number of ticket

PLEASE HELP! :)