I think it is b. Most beautiful, as c and d don't make sense. A is a possibility, but I'm pretty sure it is b. Most beautiful.
I believe the answer is opium
Based on the given excerpt above which is taken from "To Kill a Mocking Bird", it shows the Scout is evoking the shooting of the rabid dog. This is the scene about the Mad Dog. The answer would be the third option. Hope this answer helps.
Action verbs are like verbs that does a certain action. Ex. jump, run, swim etc.
The answer is c.
"Watched" is the action in that sentence.
Hoped that helped.
~Bob Ross®