Money supply in India may increase if, ________________(Choose the correct alternative)

These are the options for the question :Money supply in India may increase if, ________________(Choose the correct alternative)

1. Reserve Bank of India(RBI) injects more money in circulation
2. the commercial banks expand their credit operation
3. tax rates are reduced by the Central Government
4. Reserve Bank of India increases the Bank Rate
Alternatives:
a) 1,2 and 3 are correct
b) 2,3 and 4 are correct
c) 1,3 and 4 are correct
d) 1,2 and 4 are correct

The correct answer is -a) 1,2 and 3 are correct