Informal groups that emerge for a wide variety of personal reasons (including shared non-work interests) are called ___.

A) interest groups
B) friendship groups
C) support groups
D) enabling groups
E) autonomous groups

(Figure: Monopolistic Competition III) Use Figure: Monopolistic Competition III.The figure shows the demand,marginal revenue,marginal cost,and average total cost curves for Pat's Pizza Parlor,a monopolistic competitor in the food-to-go industry.In the long run,the demand curve for Pat's Pizza Parlor will shift to the _____ as competitors _____ the market.

A) right;enter
B) right;leave
C) left;enter
D) left;leave