With Respect to Commercial Speech,the Government Can

With respect to commercial speech,the government can:

A) not regulate because commercial speech is fully protected.
B) subject it to time, place or manner restrictions, but not prevent it.
C) entirely restrict or prevent it, so long as the speech does not have political content.
D) prevent it if the Congress and the President agree.
E) prevent it entirely only upon the consent of two-thirds of the Senate.