Which of the following are Models of Communication? Choose the correct answer from the options given below:

Westley and MacLean, Newcomb and Gerbner each built a recognised model of the communication process, marking statements 1, 2 and 3.

Newcomb's ABX design showed how two people orient to each other and to a shared object of attention.

Gerbner's model mapped perception, means and control across the whole act of communication.

Maxwell McCombs and Donald Shaw, named in statement 4, gave the agenda-setting theory of media, not a process model.

L. A. Festinger, in statement 5, is tied to cognitive dissonance, a psychological theory rather than a communication model.

Westley and MacLean's model is especially noted for adding the gatekeeper role to mass communication.