Explanation:

- Surplus sale: This term usually refers to selling excess produce that is more than what the farmer needs, even if prices are low. However, it might not necessarily mean financial compulsion.

- Distress sale: Refers to the situation where farmers have to sell produce immediately after harvest, despite low prices, due to financial pressures or lack of storage. This is the correct answer.

- Commercial farming: This is a type of agriculture aimed at producing goods for sale in the market, as opposed to just for family consumption. It's more about large-scale production.

- None of these: This option applies when none of the provided options fit the description given, but in this context, it does not apply.