Artis Sales has two store locations. Store A has fixed costs of $120,000 per month and a variable cost ratio of 65%. Store B has fixed costs of $210,000 per month and a variable cost ratio of 20%. At what sales volume would the two stores have equal profits or losses?

a. $200,000.

b. $330,000.

c. $388,235.

d. Cannot determine with the information given.