Answer:
Option (C) is correct.
Step-by-step explanation:
It was given that pizza industry is under the conditions of monopolistically competitive industry. The firms under monopolistic competitive industry are selling the similar products but these products are not perfect substitutes and the decision made by one firm do not affect directly the decision made by other firms in the industry.
Little Joe's raises the prices by 10%, so as a result demand for his pizza decreases because some of the individuals won't be able to afford that price. Hence, Little Joe's Pizzeria will lose some of its customers.