In Central Hudson Gas & Electric Corp

In Central Hudson Gas & Electric Corp. v. Public Service Comm., the New York utility commission ruled that electric utilities could not advertise to promote the use of electricity. The Supreme Court announced a test of the constitutionality of such restrictions on commercial speech. Which of the following is not a part of that test:

A) does the regulation directly advance a government interest
B) is the speech about a lawful matter
C) is there a substantial government interest in the matter
D) is the regulation no more extensive than necessary to serve the government interest
E) all of the other choices are part of the test