Explanation

Animal stains are substances that are derived from animal products or byproducts, and are used to color or dye materials. Grease is an example of an animal stain, as it is derived from animal fat.
Here are some examples of animal stains:
· Grease (from animal fat)
· Gelatin (from animal bones and connective tissue)
· Egg yolks (from chicken eggs)
· Beeswax (from honeybees)
Lanolin (from sheep wool).

Other choices do not fit as well. Each has a reason why it does not answer the question correctly. Understanding why wrong answers are incorrect helps reinforce the right answer.

This knowledge is important for Home Economics. It helps in daily life and builds practical skills for managing homes and families effectively.