. Why might such images have been "a rarity in newspapers in the generation after the Vietnam War"?

probably because the cameramen were always shot just as the soldiers

Explanation:

i believe the answer is: a.  abstract forms were often used to represent human figures.

representing human figures in abstract forms is often used in the geometric period, not hellenistic  period.   during the hellenistic  period,   aesthetic value derived from creating arts which mimic the actual shape of a certain object or individuals.

hope this ! < 3

answeras live actors preforming in the same room as a live audience;