Correct option is B
Statement:
If any of the faculty of sociology or social work sends his/her students to the inter-college debate, the college will definitely get some prizes.
(i) The management must make sure that either of the two faculties of sociology and social work makes his/her students participate in the debate.
This directly supports the condition in the statement and ensures prize-winning participation.
Valid course of action.
(ii) The management must allow only the students of the faculty of sociology and social work to take part in the debate.
This unnecessarily restricts participation by excluding students from other faculties, which is not a requirement in the statement.
Not a valid course of action.
(iii) Students from sociology or social work must be encouraged to participate in inter-collegiate debates.
Encouraging participation aligns with the statement’s goal of winning prizes by motivating the relevant students.
Valid course of action.
So, Valid courses of action: (i) and (iii).
Thus, correct option is (b).