CMAT 2015 Solved Question Paper

On the centenary celebrations of the public school, principal wants to have a gala festival fest foe, which an organising committee is to be formed from Class X and Class XII students. Class X students are Arya, Boman, Chiki and the Class XII students are the Rajni, Sonam, Tapu and Umeed. Total 4 students are selected of which atleast two must be from Class X. Boman will not work with Rajni and Arya will not work with Tapu. Based on the following statements, which options is correct?
I. If Arya is chosen, then Umeed must also be chosen.
II. If Arya is rejected, then Sonam must be chosen
III. If Arya is rejected, then Chiki must be chosen