To answer, refer to the following:

"At Huffy's ... bicycle factory, 1,700 employees turn out 15,000 bicycles a day. Five years ago, it required 2,200 workers to make 10,000 bikes daily."

Holding all else equal, we can conclude that, over the past 5 years,

Multiple Choice

• Huffy's average variable cost decreased.
• Huffy's average variable cost increased.
• Huffy's marginal cost decreased.
• Huffy's marginal cost increased.
• both "Huffy's average variable cost decreased" and "Huffy's marginal cost decreased".