Correct Answer: B
Explanation:
There are two potential problems in this sentence: 1) the grammatical agreement between the nouns Kausar or Zareena and the pronoun her, and 2) the formation of the verb to bring. In choice B both of these are correct. Because the sentence reads Kausar or Zareena, the pronoun must be singular; only one of them brought the volleyball. Brought is the past tense of bring. Choice A is wrong because the pronoun their is plural. Choice C is wrong because there is not a correct pronoun. Choices D and E are incorrect because brang is not the past tense of bring.