Which sentence has a pronoun in the possessive case

Pronoun is a word that we use to replace noun like he, they, them us, we, you, she, it. However, possessive pronoun mean to show ownership of anything like mine, yours, hers. If we want to write possessive pronoun in sentences we can write is as this pen is mine, the book is yours, the jewelers is hers, the dog is mine, the cat is yours, the ring is hers, the car is theirs. Therefore, a sentence has a pronounce in the possessive case as in the examples mentioned.

the answer is b and c

what lesson are you referencing?