How did a divergent boundary create the country of Iceland , the only place where the Mid-Ocean Ridge rises out of the water.

Question

Iceland Vacations - Globus® Iceland Tours

a
Two underwater plates moved apart from each other, allowing an upwelling of lava that immediately cooled in the water, eventually building itself up till it surfaced.
b
Two underwater plates moved towards each other, crashing and causing an explosion of lava, that immediately cooled and eventually built itself up into the country of Iceland.
c
One oceanic plate subducted under a continental plate, causing the continental plate to break off into the ocean becoming the country of Iceland.
d
Two oceanic plates collided with each other, causing uplift of a non-volcanic mountain until it surfaced above the ocean.

Answer 1

The correct answer is:

a: Two underwater plates moved apart from each other, allowing an upwelling of lava that immediately cooled in the water, eventually building itself up till it surfaced.

This describes the process at a divergent boundary, such as the Mid-Atlantic Ridge where Iceland is located. Here, the Eurasian and North American tectonic plates are moving apart, allowing magma to rise from below the Earth's crust. As this magma cools and solidifies, it builds up to form the island of Iceland.