Step 1: Understanding the Question:
We need to identify the full form of the abbreviation 'CRR', a key term in Indian banking and monetary policy.
Step 2: Detailed Explanation:
Within the Indian financial framework, CRR expands to Cash Reserve Ratio.
This refers to the mandatory minimum percentage of a commercial bank's total customer deposits that must be kept as reserves in cash with the central bank, the Reserve Bank of India (RBI).
The RBI utilizes the CRR as a primary monetary policy instrument to regulate systemic liquidity, thereby helping to control inflation and manage the overall money supply.
Step 3: Final Answer:
The correct choice is (A).