Unconformity

D, A, E, B, C.
D was first because if you look carefully, you can see that it used to be whole until E intersected it later on. A was second, because before an earthquake or something else happened, D and A were horizontal. E was third, because it intersects both D and A. B was fourth because it is above A, D, and E. Lastly, C is last because it intersects B.