Answer:
The image shows flat sedimentary rock layers in the foreground and angled sedimentary rock layers in the background.
According to the principle of original horizontality, what most likely happened to the rock layers in the background?
They were deposited horizontally and then shifted by a geologic event.
Step-by-step explanation:
i hope this helped, oh and if am incorrect please let me know, but i very certain i am correct, Good Luck :d :P.