If the Two Smallest Firms in a Competitive Market Merged

Multiple Choice

If the two smallest firms in a competitive market merged, the four-firm concentration ratio _______
Because _______.

A) would change; the degree of competition is notably diminished
B) would not change; especially high concentration ratios can benefit consumers
C) would change; the largest firms high concentration ratio is diminished
D) would not change; the degree of competition isn't notably diminished