Option B is correct because both statements A and B are true. According to the textbook, two different sets of reasons can be given in favour of power sharing. Firstly, power sharing is good because it helps to reduce the possibility of conflict between social groups. Since social conflict often leads to violence and political instability, power sharing is a good way to ensure the stability of political order. Additionally, power sharing is considered good for democracy as it promotes people's participation in government, decreases the possibility of arbitrariness, and accommodates diversities. These arguments establish that power sharing is beneficial for both democracy and for reducing conflicts between social groups.