This question is followed by four possible answers. The alternatives other than the correct answer also seem to have a relationship with the item mentioned in the statement. You are required to select the absolute truth which always holds or verifies the truth of the statement: "An animal always has_______________"

Life

"An animal always has life"

Because it highlights a fundamental characteristic of all living animals. Life is a defining feature of animals, distinguishing them from non-living entities.

The other options provided, such as "skin," "heart," and "lungs," are indeed common features found in many animals, but they are not universal to all animals.