Concept:Regular inspection of stored yams prevents the spread of damage and maintains quality.
Explanation:In a yam barn, sprouts and rotten tubers are the main problems that develop during storage.
Sprouts drain nutrients from the yam, reducing its food value and market quality.
Rotten tubers produce diseases and rot that can quickly spread to healthy yams nearby.
By inspecting once a week, the farmer can remove these affected tubers early.
This keeps the remaining yams healthy and prevents widespread spoilage.
Options B, C, and D do not describe the main purpose of weekly inspection.
Answer:A. remove sprouts and rotten tubers