A cat and a rooster D

1. The sentence describes the rooster's crowing in the morning. 2. The pronoun should refer to the rooster. 3. 'they' is the plural pronoun, 'them' is the object pronoun, 'theirs' is possessive. 'their' is the possessive determiner. The rooster crows for the good of 'their' people. This implies the rooster crows for the good of the people who own or are associated with the rooster. 4. 'their' is the correct possessive determiner.

their