The Reserve Bank of India regulates the commercial banks in matters of

1. liquidity of assets
2. branch expansion
3. merger of banks
4. winding-up of banks

Select the correct answer using the codes given below.

(a) 1 and 4 only

(b) 2, 3 and 4 only

(c) 1, 2 and 3 only

(d) 1, 2, 3 and 4