Solution:(b) Isha said to Shivani, "We don't need to buy tickets for the match as I have been given free passes for two." (Correct)(a) Isha said to Shivani, "We didn't need to buy tickets for the match as I am given free passes for two." (Incorrect Tense)
(c) Isha said to Shivani, "They didn't need to buy tickets for the match as she was given free passes for two." (Incorrect Pronoun and Tense)
(d) Isha said to Shivani, "They didn't need to buy tickets for the match as I am given free passes for two." (Incorrect Pronoun and Tense)