Assume a Purely Competitive Constant-Cost Industry Is Initially at Long-Run

Assume a purely competitive constant-cost industry is initially at long-run equilibrium.Now suppose that a decrease in demand occurs.After all the long-run adjustments have been completed, the new equilibrium price

A) and industry output will be less than the initial price and output.
B) will be the same as the initial price, and the output will be less.
C) will be greater than the initial, but the new output will be less.
D) will be less than the initial price, but the new output will be greater.