Tank irrigation is practised mainly in Peninsular India because
1. undulating relief and hard rocks make it difficult to dig canals and wells
2. rivers are rain-fed
3. of compact nature of population and agricultural fields
Select the correct answer using the code given below :

Options

A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3