The Principle of Superposition States That in an Undisturbed Sequence

The principle of superposition states that in an undisturbed sequence of strata,

A) the oldest layer is on the top.
B) the oldest layer is on the bottom.
C) the oldest layer is the shallowest in the sequence.
D) the youngest layer is the least disturbed by environmental changes such as erosion.
E) the stratigraphic techniques are useful only if the soils have a high content of sandstone.