From a Politically Strategic Standpoint, How Has Television Benefited Political

From a politically strategic standpoint, how has television benefited political candidates, as compared to radio?

A) It costs much less than radio advertising.
B) It is less expensive than radio, though radio reaches more potential voters.
C) It has allowed them to develop an "image" through carefully planned media appearances and advertisements.
D) There is little difference in benefit between radio and television.
E) It has increased the voter turnout in elections.