(B) II and III
Statements II and III are correct — power sharing reduces the possibility of conflict between social groups and ensures the stability of political order. Statement I describes majoritarianism (undesirable), and Statement IV is incorrect as power sharing reduces, not brings, socio-political opposition.
The textbook (Why power sharing is desirable?, Chapter 1) clearly states: "power sharing helps to reduce the possibility of conflict between social groups" and "power sharing is a good way to ensure the stability of political order." Statement I describes what power sharing opposes (imposing majority will), and Statement IV contradicts the text entirely. Examiners expect students to identify the two correct prudential reasons for power sharing.