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Assertion (A): True xerophytes store water in the form of mucilage which helps to withstand prolonged period of drought.

Reason (R): Vascular and mechanical tissues are well developed in true xerophytes.

The correct answer is:

Both A and R are true and R is the correct explanation of A
Both A and R are true, but R is not the correct explanation of A
A is true, but R is false
A is false, but R is true
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