Answer:
The answer is D
Explanation:
This is because items in a series will sound grammatically correct if separated by a conjunction. A might seem like an ideal answer but a comma splice is using a comma to link two independent clauses.
There is no passage and answer choices, so it is impossible to answer this question. I apologise.
The correct answer is C) Mom sent him and his brothers outside to play. In the other examples subjective case is used, not objective.