单项选择题

A shoe store charges $39 for a pair of a certain type of sneaker. This price is 30% more than the amount it costs the shoe store to buy one pair of these sneakers. A sales associate can purchase a pair of these sneakers at 20% off the store’s cost. How much would an associate pay for a pair of these sneakers (excluding sales tax)

A. $31.20
B. $25.00
C. $24.00
D. $21.84
E. $19.50