Marco Is a Franchisee with Daggies,a Chain of Sandwich Shops

Multiple Choice

Marco is a franchisee with Daggies,a chain of sandwich shops.His business was doing well until several Daggies franchisees got in trouble and were forced to close their shops.Soon afterward,Marco's business deteriorated and he too was forced to close.This is an example of:

A) An economic shakeout at work.
B) The coattail effect.
C) The law of diminishing returns.
D) Management by exception.