If Producing Just One More Tube of Toothpaste Makes Crest's

Multiple Choice

If producing just one more tube of toothpaste makes Crest's average total cost fall, the marginal cost of that tube of toothpaste is

A) less than one
B) greater than the average total cost of the previous tubes
C) greater than the average variable cost of the previous tubes
D) less than the average total cost of the previous tubes
E) less than the marginal cost of the previous tube