Answer:
Is that correct?
Explanation:
A comma ( , ) is not needed in this sentence
how challenging it is for other people to live in this world.
Answer: Option A.
<u>Explanation:</u>
In the paragraph that has been given in the question, the author talks about the tests and the challenges that she has to take just like the other people have to take these tests in their life.
She is trying to emphasize on the importance of these tests and these challenges in the life by using this word again and again, repeating it some where tries to show the importance of this word. This tries to tell how tough and challenging some times life becomes.
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
