After reaching the female genital tract, human sperms retain their fertilizing capacity for

The correct answer is (d). Human sperms retain their fertilizing capacity for one to two days after reaching the female genital tract. This is because sperms are able to survive in the female reproductive tract for a long period of time. They can also swim up the fallopian tubes and fertilize an egg.

Option (a) is incorrect because sperms can survive in the female reproductive tract for much longer than two minutes.

Option (b) is incorrect because sperms can survive in the female reproductive tract for much longer than twenty minutes.

Option (c) is incorrect because sperms can survive in the female reproductive tract for much longer than ninety minutes.