The 1944 U.

The 1944 United States v. South-Eastern Underwriters Association decision held that insurance transactions crossing state lines constituted interstate commerce and could therefore be subject to federal regulation under the Commerce Clause. This case reversed the earlier assumption from Paul v. Virginia that insurance was not commerce and was primarily a matter of state regulation. The decision created significant concern that federal law could displace state insurance regulation. Congress responded in 1945 with the McCarran-Ferguson Act, which preserved state regulation of insurance unless federal law specifically provides otherwise. Option A is therefore correct because the case itself determined that insurance is commerce and subject to federal regulation. Option B describes the post-McCarran-Ferguson regulatory policy more than the holding of South-Eastern Underwriters. Options C and D are unrelated regulatory comparisons and are not the holding of the case. Reference topics: U.S. v. South-Eastern Underwriters, Interstate Commerce, Federal Regulation, McCarran-Ferguson Act.