Concept:Sunshine near the time of cotton harvesting keeps the bolls dry and prevents the growth of mould.
Explanation:At maturity, cotton bolls open to expose the lint.
At this stage, dry and sunny weather is very important.
When there is rain or cloudy weather, the open bolls remain damp.
Dampness encourages fungi to grow on the cotton lint.
These fungi cause the lint to rot and become mouldy.
Mouldy cotton loses its colour, quality, and market value.
Sunshine quickly dries up any moisture present in the bolls.
Dry air also limits the spread of mould spores in the field.
As a result, properly dried bolls remain clean and healthy.
Therefore, sunshine is needed during harvest time to ensure that the bolls produced are not mouldy.
Answer:C. not mouldy