For a Large Firm That Produces and Sells Automobiles, Which

Multiple Choice

For a large firm that produces and sells automobiles, which of the following costs would be a variable cost?

A) the $20 million payment that the firm pays each year for accounting services
B) the cost of the steel that is used in producing automobiles
C) the rent that the firm pays for office space in a suburb of St. Louis
D) All of the above are correct.