Given below are two statements, one labeled as Assertion (A) and the other labeled as Reason (R). **Assertion (A):** The Western Kshatrapa ruler Nahapana actively promoted and secured the trade routes leading to the port of Barygaza (Bharuch). **Reason (R):** The Satavahanas blockaded the ports of the Western Kshatrapas, forcing them to divert all international trade through Tamralipti. 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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