Which calculation should be completed first to solve this story problem?

Toni bought a soccer ball, 3 water bottles, and a pair of shin pads. The soccer ball cost $34.99, each water bottle cost $5.49, and the shin pads cost $18.98. She had to pay $4.93 in sales tax. How much change would Toni get from $90.00?

A.
the change

B.
sum of the cost of 1 ball, 1 bottle, and 1 pair of shin pads

C.
sum of the cost of 1 ball, 3 bottles of water, and the tax

D.
total cost of 3 water bottles