Answer:
The answer is C.
Step-by-step explanation:
Competitive market i.e perfect competitive market is the type of market that has many sellers and buyers, the products are identical or similar, no seller or buyer can influence the price of the products, there is low barriers to entry.
This market has a well defined supply curve. The long-run supply curve is a horizontal straight line which is equal to the minimum average cost. Because it is elastic, the price would remain the same irrespective of the output. So it is more sensitive to price(cost of production) in the long run.