The Candy Store held a raffle, and Matt won the grand prize. He won a gift card to the store, as well as a bag of giant lollipops. He gave 21 lollipops to his friends, and he kept the remaining 7 lollipops. Which equation can be solved for n to find the total number of lollipops in the bag?

A) n / 21 = 7
B) n - 21 = 7
C) n + 21 = 7
D) 21n = 7