The focus of the National Food Security Mission:

Increasing production of rice, wheat, and pulses
Distributing food grains to the poor
Promoting organic farming
Ensuring food safety standards

The correct answer is: A) Increasing production of rice, wheat, and pulses.

The National Food Security Mission (NFSM) is a government of India initiative launched in 2007 with the objective of increasing production of rice, wheat, and pulses. The mission has been successful in increasing production of these crops, and has also helped to improve the livelihoods of farmers.

Option B is incorrect because the NFSM does not distribute food grains to the poor. This is the responsibility of the Public Distribution System (PDS).

Option C is incorrect because the NFSM does not promote organic farming. This is the responsibility of the Ministry of Agriculture and Farmers Welfare.

Option D is incorrect because the NFSM does not ensure food safety standards. This is the responsibility of the Food Safety and Standards Authority of India (FSSAI).