Visitors to a carnival pay an admission fee and must buy a ticket for each ride they go on. Last year the total cost for a visitor to go on n rides was modeled by the expression 4.00 + 1.50n. This year, the carnival doubled the cost of a ride ticket but kept the admission fee the same.

Which expression models the total cost for a visitor to go on n rides at the carnival this year?

A. 4.00 + 3.00n

B. 8.00 + 1.50n

C. 4.00 + 0.75n

D. 2.00 + 1.50n