Under which situation may a country need to plan rapidly for both schools and jobs?

Correct answer: Large youthful population

A large youthful population creates two connected planning needs. In the present, many children and adolescents require schools, classrooms, teachers, nutrition, vaccination, and other health services. As these large groups grow older, they enter the working-age population. The country must then provide enough jobs, training, transport, housing, and productive opportunities for them. If planning is delayed, pressure on both education and employment can become serious.

Option A is therefore correct. A very small population does not by itself create this two-stage pressure, while an elderly-only population mainly raises demands for pensions, health care, and long-term support. Zero births would not create a large new school-age group. The important demographic link is that a large child cohort creates immediate educational demand and later becomes a large potential workforce, so governments need coordinated planning for both stages.