When male ejaculates sperms during coitus of which for normal fertility at least....... percent sperms must have normal shape and size and at least ...........per cent of them must show vigorous motility

  • A

    $40, 60$

  • B

    $50, 50 $

  • C

    $60, 40$

  • D

    $52, 48$

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  • [NEET 2020]