Answer (b) is the correct.A bilateral mistake of fact renders the agreement void. Therefore, option (b) is the correct answer.

Answer (b) is correct. Once ownership passes, the buyer becomes liable for public charges related to the property. Therefore, option (b) is the correct answer.

Answer (b) is correct. Shayara Bano case declared instant triple talaq unconstitutional. Therefore, option (b) is the correct answer.

Answer (b) is correct. Consent of wife (adoptive mother) is mandatory for valid adoption. Therefore, option (b) is the correct answer.

Answer (b) is correct. Section 63 BSA mandates certificate authentication for electronic records admissibility, ensuring integrity and authenticity. Therefore, option (b) is the correct answer.