Based on the excerpt, why might the author have titled the book a rumor of war?

Because the Vietnam War was fought in an especially brutal and untraditional way

the correct answer is:

this is an example of the writer telling through description rather than showing through dialogue.

sometimes writers like to explain explicitely what's happening instead of adding dialogues of the situations., which is the case in this passage,

the correct answer is   d. a picture depicting people applauding a country's leader.