Which feature forms as a result of a tectonic plate boundary that creates an underwater mountain range in the open ocean?

marsh

trench

abyssal plain

mid-ocean ridge

Mid-ocean ridge (option d)

The answer is; mid-ocean ridge

This geographical feature is found in divergent boundaries where tectonic plates are moving away from each other. The magma from mantle rises (upwells) to replace the void. Therefore, as magma rises and accumulates, as it cools into new crust, it forms mountain ranges along the boundary.