Given below are two statements, one labeled as Assertion (A) and the other as Reason (R). **Assertion (A):** Chandragupta Maurya's initial military campaigns directly targeting the heart of the Nanda Empire (Pataliputra) resulted in disastrous defeats. **Reason (R):** The Nanda king Dhana Nanda had already disbanded his standing army before Chandragupta's first attack, leaving no central target. 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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