Concept:An electoral system should give fair representation to all groups in a diverse society.
Explanation:A heterogeneous society contains many different ethnic, religious, and political groups.
A purely majoritarian system may leave minority voices unrepresented.
Proportional representation allocates seats in proportion to votes received by each party.
This allows smaller and minority groups to gain representation in the legislature.
Therefore, it is best suited to reflect the diverse interests of such a society.
Answer:D. proportional representation