Which option correctly explains why population growth needs service planning?

Correct answer: A growing population requires more schools, hospitals and housing in the future

Direct answer: Option A. When population increases, more people need essential services. A larger number of children may require additional schools and teachers; more residents may require hospitals, health workers, housing, water supply and sanitation. Planning helps authorities estimate future demand and provide services fairly and in time. Option A correctly names schools, hospitals and housing as examples of services or facilities that may need expansion. Option B is wrong because transport is important, but planning is not limited to transport. Option C is wrong because a larger population normally creates greater demand rather than automatically reducing it. Option D is wrong because population size directly affects the number of people needing education, healthcare and housing. The exact amount of planning depends on population size, age structure, location and available resources. Memory cue: more people mean more needs, so planning must look ahead.