Whose disciple was Khwaja Moinuddin Chisti?

Q. Whose disciple was Khwaja Moinuddin Chisti? [UP PCS 2014]

A.            Khwaja Abdal Chisti

B.            Shah Wali Ullah

C.            Mir Dard

D.            Khwaja Usman Haruni

Answer: Khwaja Usman Haruni