Which is correct about fossils location and age?

Question

Fossils found in among numerous other fossils are most recent in age.
Fossils found in lower rock layers are older than fossils foun in upper layers.
Fossils found in rock layers closest to earth's surface are the oldest.
Fossils found in rock layers that have been disturbed are the oldest.

Answer 1

Fossils found in lower rock layers are older than fossils found in upper layers.