A
Both A and R are true and R is the correct explanation A
B
Both A and R are true, but R is not the correct explanation A
C
A is true, but R is false
D
A is false, but R is true
Solution:
The assertion and reason are true but R is not the correct explanation of A. The government buys wheat and rice at a fair price to support the farmers. This helps the distressed farmers when sales are not good and helps the government strengthen the country's food security. It is also true that the public sector contributes to economic development as it creates employment, and infrastructures, provides education at affordable prices, etc. But buying of crops at a fair price does not leads to any kind of economic development.
