Step 1: Understanding the Concept:
This question tests the chronological knowledge of the enactment years of some major social legislations in India.
Step 2: Detailed Explanation:
Let's find the year of enactment for each Act:
D. Medical Termination of Pregnancy Act: This was a landmark piece of legislation that was enacted in 1971.
C. Family Courts Act: This Act was passed to establish Family Courts with a view to promoting conciliation and securing speedy settlement of disputes relating to marriage and family affairs. It was enacted in 1984.
B. Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA): Originally passed as the National Rural Employment Guarantee Act (NREGA), this law guaranteeing 100 days of wage employment was enacted in 2005.
A. National Food Security Act: This Act aims to provide subsidized food grains to approximately two-thirds of India's population. It was enacted in 2013.
Step 3: Final Answer:
Arranging these legislations from the earliest to the latest:
1. Medical Termination of Pregnancy Act (1971) $\rightarrow$ D
2. Family Courts Act (1984) $\rightarrow$ C
3. MGNREGA (2005) $\rightarrow$ B
4. National Food Security Act (2013) $\rightarrow$ A
The correct sequence is D, C, B, A.