The correct answer is D. Abuse of dominance rather than dominance should be the key for competition policy law.
A competition policy law is a set of rules that aim to promote competition in the marketplace. The goal of competition policy is to protect consumers from anti-competitive practices, such as price-fixing, collusion, and abuse of dominance.
Option A is correct. Collusion and dominance are two types of anti-competitive practices that can harm consumers. Collusion is when two or more companies agree to fix prices or restrict output in order to increase their profits. Dominance is when one company has a large enough share of the market that it can control prices and exclude competitors.
Option B is correct. The Competition Commission of India (CCI) is the independent body responsible for enforcing the Competition Act, 2002. The CCI can investigate complaints of anti-competitive practices and impose penalties on companies that violate the law. Appeals against decisions of the CCI can be made to the Competition Appellate Tribunal (CAT).
Option C is incorrect. State monopolies, government business policies, and the functioning of regulatory authorities can be scrutinized under the Competition Act, 2002. The CCI has the power to investigate these matters and take action if it finds that they are anti-competitive.
Option D is incorrect. Abuse of dominance is a type of anti-competitive practice that can harm consumers. However, dominance itself is not necessarily harmful. In some cases, a dominant company may be able to lower prices and improve quality for consumers. The key for competition policy law is to prevent abuse of dominance, not dominance itself.