Answer:
A. weak : frail
Explanation:
"weak" and "frail" are the best option among the words listed in the question.
"Thin" and "gaunt" refer to they physical appearance of a person, who looks "frail" or "weak". The words "weak" or "frail" having more of a figurative meaning, that is still similar to "thin" or "gaunt".
So you have to I am writing to inform thats the way to write it
Hot because the word hot describes what the room is, which is being hot. <span>An adverb is a word that modifies or qualifies an Adjective, Verb, or another Adverb. </span>