Plz Help Fast!!!
Joshua's goal is to sell more than 20 items at a farmers' market. So far, he has sold 6 items. Each of his customers buys 2 items.

Let c represent the number of additional customers Joshua must have to meet his goal.

Joshua needs to have more than _______ additional customers to meet his goal

A. 3
B. 7
C. 8
D. 14