When an oceanic plate collides with a continental plate, the result is that the oceanic plate is forced below the continental plate. This is because oceanic plates are denser than continental plates, so when they collide, the denser oceanic plate sinks beneath the less dense continental plate in a process known as subduction. This creates a subduction zone, where the oceanic plate is forced into the underlying asthenosphere. As the oceanic plate sinks, it may also cause the overlying continental plate to buckle and uplift, leading to the formation of mountain ranges.

Option 1, which states that the oceanic plate is forced below the continental plate, is the correct answer. Option 2, which states that the continental plate is forced below the oceanic plate, is incorrect because it is the opposite of what actually happens. Option 3, which states that continental and oceanic plates never collide, is also incorrect because continental-oceanic plate collisions do occur and are responsible for various geological phenomena such as volcanic activity and the formation of island arcs.