Assertion : The rate at which a population can be expected to grow in the future can be assessed...

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Assertion : The rate at which a population can be expected to grow in the future can be assessed graphically by means of a population pyramid.

Reason : A triangular population pyramid is characteristic of a country whose population is stable, neither growing nor shrinking.
(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 assertion is false but reason is true.
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