How Has the U

How has the U.S.Supreme Court intervened in the rights of advertisers under the First Amendment?

A) It has supported the ban against professional advertising.
B) It has established strict control over packaged-goods advertising.
C) It has banned all cigarette advertisements from the broadcast media.
D) It has distinguished between "speech" and "commercial speech" and offered significant protection for truthful commercial speech.
E) It has made social responsibility mandatory for publicly traded firms.