The correct answer is B. Abhay.
Abhay was appointed as the Director General of the Narcotics Control Bureau (NCB) on 31 May 2018. He is a 1986-batch Indian Police Service (IPS) officer of the Gujarat cadre. He has served in various capacities in the Gujarat Police, including as the Commissioner of Police, Ahmedabad. He has also served as the Director General of the Border Security Force (BSF).
H. P. Kumar is a 1985-batch Indian Police Service (IPS) officer of the AGMUT cadre. He has served in various capacities in the Central Bureau of Investigation (CBI), including as the Director of the CBI. He has also served as the Director General of the National Investigation Agency (NIA).
S. C. Rohatgi is a 1978-batch Indian Police Service (IPS) officer of the Gujarat cadre. He has served in various capacities in the Gujarat Police, including as the Director General of Police. He has also served as the Governor of Punjab.
Rakesh Goyal is a 1982-batch Indian Police Service (IPS) officer of the Rajasthan cadre. He has served in various capacities in the Rajasthan Police, including as the Director General of Police. He has also served as the Secretary of the Ministry of Home Affairs.