Answer:
C). On Close-ups of the men.
Explanation:
As per the question, if a director wishes to stress the men's emotions in film production then he must deviate the camera's focus 'on close-ups of the men' as it would assist him to reflect the intensity of their pain and suffering through their nasty and sorrowful expressions. Such expressions could only be reflected through their close-ups and these expressions would help the actors look more authentic and thus, would be able to connect to the audience more effectively. Thus, option C is the correct answer.