__________ இரட்டைப் பகா எண்கள். A. (4, 9) B. (2, 3) C. (4, 6) D. (3, 5)

Twin primes are pairs of prime numbers that differ by 2, such as (3, 5), (5, 7) and (11, 13). (2, 3) differ by 1, and 4, 6 and 9 are not prime.