. Zee Art Gallery sells pictures for $50 each. Zee pays $20 for the print and frame, and pays the sales clerk 10% (of the sales price) as a commission. Zee has $7,000 of monthly fixed costs as well. How many pictures does Zee need to sell in order to make $5,000 profit this month?

a. 400

b. 480

c. 2,400

d. 24,000

e. 30,000