The correct answer is C) because the Vietnam War was fought in a especially brutal and untraditional way.
Based on the excerpt, the author might have titled the book "A Rumor of War" because the Vietnam War was fought in an especially brutal and untraditional way.
In the passage, the author writes that "The war was just a matter of enduring weeks of expectant waiting and, at random intervals, of conducting vicious manhunts through the jungles and swamps, where snipers harassed us constantly and traps cut us down one by one".
These ideas of what Philip lived during the war shows the brutality and untraditional way the Vietnam War was fought and the constant pressure and fear American soldiers felt in Vietnam.
"A Rumor of War" was a book written by Philip Caputo where he related his terrible experience during the Vietnam War. A T.V. series was adapted in 1980.