Concept:Drying is the most common home method for preserving a wide variety of food commodities in Ghana.Explanation:Drying removes moisture from food, preventing the growth of microorganisms that cause spoilage.It is cheap, simple, and suitable for many foods such as grains, fish, vegetables, and fruits.Salting and smoking are more limited mainly to fish and meat, while bottling is less common at home.Answer:A. drying.