Answer:
A. Some students decided they wanted a garden.
Explanation:
A pronoun usually refers to a noun or another pronoun called its antecedent. Whenever you use a pronoun, make sure that it agrees with its antecedent.
In the first sentence, the pronoun <em>they</em> agrees with its antecedent, <em>students</em>. They are both plural.
Answer:
A:The police no longer suspect Mary of murdering her husband.
Explanation:
B: he is confident about his abilities