How are stage and film versions of a drama similar? The viewer must infer the mood from the lighting and sound effects.
The viewer must envision the way the characters look and sound.
The viewer must imagine the setting.
The viewer must visualize the action.

The stage and the film versions of a drama are similar in the sense that:

A. The viewer must infer the mood from the lighting and sound effects.

Explanation:

Lighting and sound effects play a major role in conveying the mood of a scene or a story as a whole. Both a stage and a film version of a drama will rely greatly on them to help the audience sense the atmosphere. That is why option A is the best choice. The other options, on the other hand, speak of imagining, envisioning and visualizing, which are basically the same thing. There would be no need to do so for the action, the setting, or the characters' looks for a stage or a film adaptation.

i believe it is he has been given the drum as a joke.