Brianna finds the following definition in the glossary of her science textbook: coma: a cloud of dust around the nucleus of the
comet Which of the following sentences correctly uses the word coma as it might be found in Brianna's textbook OA. I was glad my grandfather was not left in a coma after his serious accident. ОВ. Please make sure you put all your comas, apostrophes, and periods in the sentences. OC. The coma of the comet consists of ice particles and interstellar dust. OD. A coma is a very deep sleep.
The sentence which correctly uses the word "coma" as it might be found in Brianna's textbook is:
C. The coma of the comet consists of ice particles and interstellar dust.
Explanation:
The definition in Brianna's textbook clearly refers to "coma" as being that dust cloud that surrounds a comet. Therefore, we need to find a sentence that somehow mentions a comet's coma.
Sentences A and D can be eliminated since they refer to the coma a person gets into after an accident or due to an illness, for example. Sentence B refers to punctuation marks. In this case, it should be "comma" and not "coma". We can eliminate it as well. We are left with option C, which is the only one that uses coma in the sense found in the glossary. It clearly speaks of the coma of a comet.
Subject-verb concord is when the subject of a sentence and the verb of a sentence agree. Simply, if the subject of the sentence is singular, the verb must be singular. If the subject of a sentence is plural, the verb must be plural.
