I would say the answer is C because it says heat and the passage was talking bout fire, it just seems like the best answer, sorry if I'm wrong :)
I think it is big don't stress
Answer:
Synonyms
Explanation:
Those words which have the same meaning are called synonyms.
Words having same pronunciation are called homophones.
Words having opposite meanings are called antonyms.
Words having same spellings and pronunciation are called homonyms.
Since, Enable and allow means the same, they are synonyms.