Which sentence uses their as a possessive pronoun correctly?

• A. They forgot their jackets at camp.
• B. They forgot there jackets at camp.
• C. They forgot they're jackets at camp.
• D. They forgot their jacket at camp.

Answer: (A)

The main idea is choosing the word that shows possession correctly before a noun and matches number with the subject. Their is a possessive determiner used to show ownership of plural items when the subject is plural. Here, they forgot their jackets at camp, which clearly means multiple jackets belonging to them. Using jackets keeps the noun plural to reflect the plural possession.

The other forms aren’t about possession in this context: there is is a location word, not a possessive; they're is a contraction for they are, not showing ownership; and their jacket is a possessive with a singular noun, which doesn’t align with the plural subject and the idea of multiple jackets in this scenario.