The lower growth of coal production in India during 2011-2012 was primarily due to
1. environmental restrictions
2. non-availability of forestry clearance
3. poor law and order situation in coal-producing States
4. excessive rainfall in coal-mining areas
Select the correct answer using the code given below.

Options

A. 1, 2, 3 and 4
B. 1, 2 and 3 only
C. 2, 3 and 4 only
D. 1 and 4 only