which is an example of a trace fossil?\nanimal burrow\nskin of organism\npreserved bone\npetrified wood

which is an example of a trace fossil?\nanimal burrow\nskin of organism\npreserved bone\npetrified wood
Answer
Brief Explanations:
Trace fossils are records of the activities of ancient organisms. An animal burrow is evidence of an animal's behavior. Skin, bone, and petrified wood are body - fossils which are remains of the organism itself, not traces of its activity.
Answer:
A. animal burrow