Which of the following chronological orders of the rulers of Slave dynasty is correct?

A Iltutmish-Ghiyas-ud-din Balban-Raziya-Qutb-ud-din

B Qutb-ud-din-Iltutmish-Ghiyas-ud-din-Balban-Raziya

C Qutb-ud-din-Iltutmish-Raziya-Ghiyas-ud-din-Balban