Which of the following are the functions of the National Human Rights Commission (NHRC)?
1. Inquiry at its own initiative on the violation of human rights 2. Inquiry on a petition presented to it by a victim 3. Visit to jails to study the condition of the inmates. 4. Undertaking and promoting research in the field of human rights
Select the correct answer using the code given below.

Options

A. 1 and 2 only
B. 2, 3 and 4 only
C. 1, 3 and 4 only
D. 1, 2, 3 and 4