The art of effective or persuasive speaking or writing, especially the use of figures of speech and other compositional techniques.
synonyms: oratory, eloquence, command of language, way with words
"a form of rhetoric"
language designed to have a persuasive or impressive effect on its audience, but often regarded as lacking in sincerity or meaningful content.
The best example of a primary source among these options that you've mentioned is an interview with her dad who is a Vietnam veteran. She can get all the details she needs from a person who was actually there.
Answer:
squirmed
Explanation: as the more he read, the more he acknowledged.
this made him feel 'writhe' under what he read of the book.
Answer:
A. Knowing that the attack might reach us in all too short a time, we
immediately began greatly to increase our industrial strength and
our capacity to meet the demands of modern warfare.
Explanation:
The attack is coming quickly so the logical thing to do is to prepare. The other examples are motivational or pathological statements while the first one (A) uses a clear and methodical string of thought to find a solution for the coming attack.
(If a picture type thing helps you: attack coming soon---what do we do?---begin to prepare for the attack immediately.)