Although you may do so, it is NOT always necessary to use brackets to indicate ..

A. a change in capitalization

B. All of these

c. that you have added clarifying information to a quotation

D. that you have removed objectionable content from a quote

a. a change in capitalization

Explanation:

Brackets are commonly used for the purposes listed in answer choices C and D as a symbol to “tell” the reader that they’ve edited a quote to clarify things (for example, if the original quote is “She wandered down the rabbit hole” to clarify things, the writer might instead write “[Alice] wandered down the rabbit hole”. However, it’s not necessary to use brackets to signal a change in capitalization, in fact, most people don’t.

Hope this helped.

2nd option

explanation: