Final answer:
The sentence correctly using brackets to indicate added information is: 'OMs. Aronson [the teacher] said the students could leave early.'
Step-by-step explanation:
The sentence correctly using brackets to indicate added information is:
OMs. Aronson [the teacher] said the students could leave early.
In this sentence, the brackets are used to provide additional information about Ms. Aronson being the teacher. By placing the phrase 'the teacher' inside brackets, it clarifies that Ms. Aronson is the person who said the students could leave early.
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