After conducting a market research study, Magnificent Manufacturing decided to produce a new interior door to complement its exterior door line. It is estimated that the new interior door can be sold at a target price of $250. The annual target sales volume for interior doors is 28,000. Magnificent has target operating income of 40% of sales. What is the target operating income?

a. $2,800,000
b. $4,200,000
c. $7,000,000
d. $9,800,000