Concept:Boiling oil palm fruits helps preserve the quality of the oil by preventing rancidity.Explanation:Fresh oil palm fruits contain enzymes that can break down the oil into free fatty acids.This breakdown leads to a high level of oil rancidity and poor quality.Boiling the fruits destroys these enzymes through heat.As a result, the oil remains stable and does not become rancid quickly.Thus, the main purpose of boiling the fruits is to prevent a high level of oil rancidity.Answer:B. prevent high level of oil rancidity