C. an oceanic trench is most likely form when movement along a plate boundary forces a landmass to be pulled apart.
Igeneous intrustions are created when magma that is trying to get out from under the earth, cools before it reaches the surface and causes geological irregularities. there are 3 types of igeneous intrusions: sills, batholiths, and dykes.
The correct answer is C: the Mackenzie River!
A seasonal wind in southeast asia