Assertion: In a rhombus ABCD, the diagonal AC bisects ∠A as well as ∠C.
Reason: The diagonals of a rhombus bisect each other at right angles.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

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Solution

(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.

Explanation:
Clearly, reason (R) and assertion (A) are both true.
But reason (R) does not give assertion (A).
Hence, the correct answer is (b).

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(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion. ​Explanation: Clearly, reason (R) and assertion (A) are both true. But reason (R) does not give assertion (A). Hence, the correct answer is (b).

(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.

Explanation:
Clearly, reason (R) and assertion (A) are both true.
But reason (R) does not give assertion (A).
Hence, the correct answer is (b).