Arrange the following in chronological sequence of their rule at Delhi

Q. Arrange the following in chronological sequence of their rule at Delhi
(1) Razia (2) Balban (3) Iltutmish (4) Nasiruddin
(a) 4, 1, 3, 2
(b) 1, 3, 4, 2
(c) 1, 2, 3, 4
(d) 3, 1, 4, 2
Ans: (d) 3, 1, 4, 2