Question

From evolutionary point of view, human gestation period is believed to be shortening. One major evolutionary trend in humans has been the larger head undergoing relatively faster growth rate in the foetal stage.

• A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion
• B. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
• C. If Assertion is true but Reason is false
• D. If both Assertion and Reason are false

Answer 1

Answer: (D)

If both Assertion and Reason are false

Answer 2

Both Assertion and Reason are false because humans would require more gestation period (i.e. it should be $21$ months instead of $9$ months) and will increase. The frontal brain size is increasing but most of the brain growth occurs after birth till $2$ years.