Which option gives correct administrative use of population change?

Correct answer: Planning schools, health, water and housing according to changing population

The direct answer is A. Population change gives administrators information about how many people may need public services and where those people may live. If a town grows because of births or in-migration, it may need more classrooms, teachers, hospitals, drinking water, houses, roads, and sanitation. If people leave an area, planners may need to adjust services rather than simply build more of everything. Option A is correct because it connects population information with practical planning for people’s needs. Option B is wrong because the colour of a building does not represent the main administrative use of population data. Option C is wrong because population change by itself does not determine the physical direction of a river. Option D is wrong because mountain height is a physical feature, not a service-planning decision based on population change. Memory cue: population data helps plan “people-centred services.”