In female mammals Bartholin's glands open into the

  • A

    Vestibule and release a lubricating fluid in the vagina

  • B

    Uterus and release a lubricating fluid during the birth of young ones

  • C

    Urinary bladder and assist in release of urine

  • D

    Fallopian tubes and release a secretion which makes sperms motile

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