Which statement best describes the rocks at the locations labeled in

the diagram?
Rocks at locations 1 and 3 are the same age.
Rocks at location 4 are younger than rocks at location 6.
Rocks at location 3 are older than rocks at location 4.
Rocks at location 3 are younger than rocks at location 2.

Rocks at location 3 are older than rocks at location 4.