Concept:Food production in Ghana is hindered by factors that reduce the amount of food available after harvesting.Explanation:Post-harvest losses occur when crops are wasted or spoiled after harvesting due to poor storage, handling, or transportation.This reduces the quantity and quality of food available for consumption and sale.The other options are not typical problems of food production in Ghana: access to foreign exchange is not a food production problem, rainfall is generally adequate, and loss of valuable trees relates more to deforestation.Answer:Post-harvest losses