Explanation:

• The NITI Aayog comprises of the Prime Minister of India as the Chairperson; Governing Council comprising the Chief Ministers of all the States and Lt. Governors of Union Territories. Further, Maximum of 4 members of the Union Council of Ministers nominated by the Prime Minister as ex-officio members of the NITI Aayog.

The current composition of the NITI Aayog includes the following as Ex-officio Members:

• Shri Raj Nath Singh, Minister of Defence
• Shri Amit Shah, Minister of Home Affairs
• Smt. Nirmala Sitharaman, Minister of Finance and Minister of Corporate Affairs
• Shri Narendra Singh Tomar, Minister of Agriculture and Farmers Welfare; Minister of Rural Development; Minister of Panchayati Raj.

Hence option 2nd is correct.