Concept:Nation building requires attitudes and practices that promote unity, peace, and development.Explanation:Option A: Democratic living encourages citizens to participate in national development and promotes peace and unity.Option B: Defending only one’s religious beliefs can create division.Option C: Allowing minors to vote is not legally or morally acceptable in Ghana.Option D: Reducing family size is a population measure, not a direct way of promoting nation building.Answer:A. Democratic living at all places.