A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: B
Solution :
Fragmentation leads to increase in the number of plants in a locality but it does not permit spread of the plant to an entirely now locality. Being small and sufficiently buoyant, gemmae are easily carried. When detached, they spread by water and wind currents to new habitats, where each grows into a new individual immediately.
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