In Accordance with Their Merger Guidelines, the Justice Department and the Federal

Multiple Choice

In accordance with their merger guidelines, the Justice Department and the Federal Trade Commission would probably challenge a merger if the

A) number of firms in the industry were very large.
B) industry had a Herfindahl-Hirschman index above 800 and the index rose by 80 points or more.
C) industry had a Herfindahl-Hirschman index above 1,800 and the index rose by 100 points or more.
D) industry had a Herfindahl-Hirschman index below 1,000.
E) firms' markets were very large.