In her keynote address at the 10th Annual Global Antitrust Enforcement Symposium, what did Chairwoman Ramirez say about using broad measures of industrial concentration—such as the HHI—to evaluate the implications of a proposed merger on competition in the market? Select only one answer.

A. Broad measures of industrial concentration tell us much more about adverse impacts of market power than the kind of “granular assessment” that the FTC typically does for individual markets.

B. If concentration measures are already high in an industry, the FTC may presume that competition will be harmed by proposed mergers.

C. The fact that a few industries exhibit high HHIs does not justify implementing the kind of intrusive regulations that the Obama administration has enforced across all industries.

D. Broad measures of industrial concentration tell us little about market dynamics or the level of competition in a particular industry.

E. None of the statements in A—D accurately depict Chairwoman Ramirez’ views on the use of market concentration indices such as HHI.