A: The first sign of a growing foetus may be | vedclass

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(C) The Assertion is incorrect because the first sign of a growing foetus is usually noticed by listening to the heart sound,but this is typically don

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Assertion is correct,but Reason is incorrect.

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(C) The Assertion is incorrect because the first sign of a growing foetus is usually noticed by listening to the heart sound,but this is typically done after the first month of pregnancy,not as the 'first sign' in a general developmental context compared to other milestones. More importantly,the heart sound is best heard via a stethoscope later in development. However,the statement in the Assertion is technically considered false because the first sign of pregnancy is often the missed period or pregnancy test,and the heart sound is a clinical sign. The Reason is correct because,by the end of the second month of pregnancy,the foetus does indeed develop limbs and digits. Therefore,the Assertion is incorrect and the Reason is correct.

$A$: The first sign of a growing foetus may be noticed by listening to the heart sound through the stethoscope.
$R$: By the end of the second month of pregnancy,the foetus develops limbs and digits.

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$A$: The first sign of a growing foetus may be noticed by listening to the heart sound through the stethoscope.$R$: By the end of the second month of pregnancy,the foetus develops limbs and digits.