Why is it necessary to write powers of institutions separately in a Constitution?

Correct answer: So that each institution's limit and role remain clear

Direct answer: B is correct. A Constitution distributes public power among institutions and records their responsibilities. First, the legislature generally makes laws, the executive carries out policies and administration, and the judiciary interprets laws and settles disputes; the exact arrangements are defined by the constitutional system. Second, written limits help each institution know what it may do and what it may not do. Third, these limits create checks and accountability, reducing the danger that one office will misuse all power. Option B is correct because clear roles and boundaries reduce confusion, conflict, and arbitrary action. A is wrong because concentrating all power in one office encourages misuse and weakens accountability. C is wrong because defining institutional powers does not remove citizens' rights. D is wrong because elections are a democratic method of choosing representatives and are not cancelled by separation of roles. Memory cue: clear powers mean clear responsibility.