Read the assertion (A) and reason (R) below and choose the correct option regarding their truthfulness and relationship.
Assertion (A): Abscisic Acid (ABA) is known as the stress hormone because it increases the tolerance of plants to various kinds of stresses.
Reason (R): ABA plays a significant role in stimulating the closure of stomata, which helps plants reduce water loss during stressful conditions such as drought.
In light of the above statements, choose the correct answer from the options given below.

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A and R both are wrong

A and R both are true but R is not correct explanation of A

A is true but R is wrong

A and R both are true and R is the correct explanation of A

answer is A.

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Detailed Solution

Abscisic Acid (ABA) is known as the stress hormone because it increases the tolerance of plants to various kinds of stresses.
ABA plays a significant role in stimulating the closure of stomata, which helps plants reduce water loss during stressful conditions such as drought.

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