The correct answer is D. An enjoyment of solitude. Both loved living in the outdoors and being alone with their thoughts in the woods. This can be seen in the work "Walden" by Thoreau.
Answer:
They always have at least 3-5 sentences.
1) Find the object of the preposition.
2) Ask yourself which other word in the sentence is related to this noun or pronoun by the preposition.
I would say tense and uncomfortable because "it was undoubtedly hot" "he began to sweat" "began to throb in his ears" the sweat and heat makes it very uncomfortable also, the rumbling and throbbing sound makes it tense.
hope this helps :D