Given below are two statements, one labeled as Assertion (A) and the other labeled as Reason (R). **Assertion (A):** The gold coins issued by the later Gupta rulers, particularly after Skandagupta, show a progressive decline in the purity of gold content. **Reason (R):** The loss of control over western trade routes and the disruption caused by Huna invasions severely impacted the imperial treasury, forcing the minting of debased currency. Select the correct answer using the code given below:

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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