Ocean ridges are been formed due to The upwelling of magma from the asthenosphere.
What is Ocean ridges?
Mid-ocean ridges can be regarded as a process which do occur along divergent plate boundaries.
This occurrence do happen where new ocean floor is created when the Earth's tectonic plates spread apart.
- It should be noted that As the plates separate, there would be rise in molten rock.
Therefore, option B is correct.
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