Select the most appropriate option to fill in the blank.
The Mahatma Gandhi National Rural Employment Guarantee Act 2005 (Mahatma Gandhi NREGA) aims at enhancing ________ security of households in rural areas...

Correct option is D

The correct option to fill in the blank is (d) livelihood.
Explanation:
The act is related to employment and wages, hence the aim is to enhance livelihood security, i.e., assurance of income to survive.
Example: NREGA helps rural families secure their livelihood.
Meanings of all options:
· (a) Balanced – In equal or proper proportions (संतुलित)
· (b) Total – Entire or complete (कुल)
· (c) Strict – Firm or rigid (कठोर)
· (d) Livelihood – Means of earning a living (रोज़गार)