Given below are two statements, one labeled as Assertion (A) and the other labeled as Reason (R). **Assertion (A):** Despite the semi-arid nature of the Indus basin, the Harappans did not develop extensive canal irrigation networks in the core plains of Punjab and Sindh. **Reason (R):** The annual inundation of the Indus River and its tributaries provided sufficient moisture and fertile silt for winter crops (rabi) without the need for canal networks. In the context of the above statements, which of the following is correct?

Options:

• A: Both A and R are true and R is the correct explanation of A.
• B: Both A and R are true but R is NOT the correct explanation of A.
• C: A is true but R is false.
• D: A is false but R is true.

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