Fact: An example of using tools is a chimpanzee digging for insects with a stick
Question: An example of tool use is

What's the answer? Choose your answer from:
[I] mankind's closes relative using a stick to get ants out of a hole;
[II] a person throwing a hammer into a pool;
[III] a bird building a nest;
[IV] someone looking at screwdrivers in a store;
[I]