Step 1: Decode the abbreviation.
NHRC is a statutory body set up under the Protection of Human Rights Act, 1993. Decode: N = National, H = Human, R = Rights, C = Commission.
Step 2: Eliminate wrong options.
Option (1) says "Committee," option (3) adds "and Liabilities," and option (4) adds "and Duties" - none are correct.
Step 3: Confirm the answer.
The correct full form is National Human Rights Commission, which investigates human rights violations in India.
\[ \boxed{\text{National Human Rights Commission}} \]