Which should be calculated first to solve this story problem?

Annie bought a bathing suit, 2 magazines, and some sunscreen for her trip to the beach. The bathing suit cost $45.99, the magazines cost $4.79 each, and the sunscreen cost $8.97. She had to pay $5.81 in sales tax. How much change would Annie get from $80.00?

A.
the change

B.
the sum of the cost of the bathing suit, 1 magazine, and the tax

C.
the total cost of 2 magazines

D.
the total cost of all the purchases