In the illustration, at which site would you expect to find basaltic magma eruptions without volcanos

If the question looks like the picture below the the answer and the explaining is below.

D. At a rift valley the crust splits allowing basaltic magma to flow out without the force of a volcanos.

Explanation:

A. is a an illustration of a mid Atlantic ridge. Underseas volcanos form along the mid Atlantic and other Mid Ocean ridges. Some like in Iceland reach the surface.

B. Is an illustration of a hot spot volcano. These types of volcanos have formed the Hawaii islands. The island of Hawaii has an active volcano due to the action of a hot spot.

C. Is an illustration of a subduction zone. The heat and pressure that results from the ocean plate being pushed and pulled under a continental plate results in volcanos. Mt. St Helens is an example of volcano that results from a subduction zone.

D. is the correct answer, In a rift valley the magma can flow out through the break in the crust without forming a volcano. Western Oregon has vast lava beds of basaltic lava. There are no volcanos that were the source of these horizontal layers of lava.

D

Explanation:

there is not a volcano there, and the other trench is like a volcano under water