disney is the last name of walt disney (creator of disneyland) viacom is media company in filming and television, and aol time warner is just like viacom. so all of these 3 things are examples of television and media entertainment.
hopefully this ! mark me
efficency=useful energy output/total energy input x 100. 2000/3000 x 100 = 66.7%
answer; ///i do believe that the correct answer is; ////(continuity); //(d)