Brackets. in quotes, square brackets show that the writer changed the original source. you might use them to change an ambiguous pronoun (such as "he" or "they") to a specific person or group (such as "abraham lincoln" or "school teachers"). they're also used to modify the phrasing of the original source to fit your sentence, such as changing a verb from from present tense to past tense.
Answer:
The answer is B.
Explanation:
The fragile nature of existence.
Answer: the 3rd one sound good
Explanation:
C.
his regrets over letting the garden wither
