While exploring a rock formation, Hiroto finds a rock that has footprints pressed into it. A geologist tells Hiroto that the rock is millions of years old. Which of these claims is correct about Hiroto's find?
It is not a fossil because footprints are not fossils.
It is not a fossil because only whole organisms are fossils.
It is a fossil only if Hiroto finds actual parts of the organism in rocks nearby.
It is a fossil because footprints of organisms from million of years ago are considered to
be fosss