The order of the rock layers is . . . . .
D, A, E, B, C

D goes first because when the layers were horizontal layer D was on the bottom.
A is next because it is right above D.
E is after A because it is vertical so you know that it is an igneous intrusion and it stops right before layer B so you know that it is in between A and B.
B is the next layer because it is an nonconformity that is on top of the other layers.
C is the last layer. It is also an igneous intrusion and you know that it is the youngest because it cuts through layer B.