A&B Wholesalers Sells 1,000 Widgets Per Day at $1 Each

Multiple Choice

A&B Wholesalers sells 1,000 widgets per day at $1 each. A&B has introduced a new product to itsmix called the wiggle. It is estimated that A&B will sell 400 wiggles per day at $2 each; however,the sales of the widgets will decrease by 200 units per day. The firm's marginal change in revenues from adopting the wiggle is

A) $1,800.
B) $600.
C) $1,600.
D) $800.