$A$ : Presence or absence of hymen is not a reliable indicator of virginity or sexual experience.
$R$ : It can be broken down by a sudden fall or jolt, insertion of a vaginal tampon, or active participation in some sports like horse riding.

• A

  Assertion and Reason both are correct and  also correct explantion.

• B

  Assertion and Reason both are correct but not explanation of assertion.

• C

  Assertion is correct, but Reason is incorrect.

• D

  Both Assertion and Reason are incorrect.