(This question refers to the MRU video 'Entry, Exit, and Supply Curves: Constant Costs'.) If demand increases in a constant-cost industry, then in...

(This question refers to the MRU video 'Entry, Exit, and Supply Curves: Constant Costs'.) If demand increases in a constant-cost industry, then in the long run there will be:

Select one:

a. the same number of firms each producing a higher quantity.

b. more firms each producing a higher quantity.

c. the same number of firms each producing the same quantity.

d. more firms each producing the same quantity.