Exhibit 24-9 ​ Refer to Exhibit 24-9

Multiple Choice

Exhibit 24-9 ​ Refer to Exhibit 24-9. There ___________ barriers to entry in a perfectly competitive market.  There ____________  barriers to entry in monopolistic competition.  There ____________  barriers to entry in oligopoly. There ____________ barriers to entry in monopoly.  [Your answers should fill in blanks (H) , (I) , (J) and (K) , respectively.]

A) are; are; are no; are no
B) are no; are; are; are no
C) are no; are no; are; are
D) are no; are; are; are