A museum has a collection of which of the following

The correct answer is All of the above.

Explanation:
A museum is an institution that cares for and displays a collection of artifacts and other objects of scientific, artistic, cultural, or historical importance. Specifically, natural history museums house collections of:
1. Preserved plants: Plant specimens are collected, dried, mounted on sheets, and preserved in herbaria or botanical museums for scientific study.
2. Preserved animals: Animal specimens are preserved in jars containing preservative solutions (such as formalin) or stuffed and mounted to maintain their natural appearance for display and education.
3. Skeletons of animals: Skeletons, bones, and fossils are collected, cleaned, and assembled to help study the anatomy, evolutionary history, and structure of different animal species.
Since museums collect and exhibit all of these categories (preserved plants, preserved animals, and skeletons of animals), the correct choice is All of the above.