$A$ : Muscles of external ears are fully developed in humans.
$R$ : These muscle helps in moving ear pinna in human.

  • A

    Assertion and Reason both are correct and also correct explanation.

  • 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.

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$A$ : Lycaenops is a connecting link between reptiles and mammals.
$R$ : In permian period there was origin of mammal like reptiles.