Concept:Heavy investment in agriculture is primarily aimed at increasing food output to meet the needs of the population.
Explanation:Agriculture is the main source of food for any nation.
When resources are invested heavily in this sector, farmers can produce more crops and rear more livestock.
This increased production ensures that enough food is available to feed the growing population.
Therefore, the direct benefit of such investment is sufficient food production.
While other effects may occur, the core focus is food security.
Answer:A. sufficient food production