The world-famous discounter, Fernwood Booksellers, specializes in selling paperbacks for $7 each. The variable cost per book is $5. At current annual sales of 200,000 books, the publisher is just breaking even. It is estimated that if the authors' royalties are reduced, the variable cost per book will drop by $1. Assume authors' royalties are reduced and sales remain constant; how much more money can the publisher put into advertising (a fixed cost) and still break even?

a. $600,000

b. $200,000

c. $466,667

d. $333,333

e. None of these choices are correct.