Which sentence in the passage is an example of an oxymoron?

The sentence which has "deafening silence."

Explanation:

"deafening silence," which describes a silence that is so overpowering it almost feels deafening, or extremely loud—just as an actual sound would.

- "the answers are a and b.  

when cullen speaks of planting while others reap, and standing "abject and mute," he is speaking about the racial injustices present in american society. as these injustices have changed over time, the american identity  has also shifted. those changes are, in turn, reflected in american literature."

i guess the cause and effect would show how being around the smoke(the cause) can have negative effects on the body.

explanation: