Final answer:
Mid-ocean ridges are found at B) divergent plate boundaries, where tectonic plates move apart and new crust is formed. These features are predominantly located in ocean basins but can also be seen on land in places like the East African Rift.
Step-by-step explanation:
These are locations where tectonic plates are moving away from each other. This separation allows molten rock from the mantle to rise and create new oceanic crust. As the molten rock cools, it forms a ridge on the ocean floor. An example of a mid-ocean ridge is the Mid-Atlantic Ridge, which is a result of the divergent boundary between the Eurasian Plate and the North American Plate.
At divergent boundaries, we typically see features such as rift valleys and mid-ocean ridges. Divergent boundaries are most plentiful in the ocean basins, but can also be found on land, like the East African Rift. Transform boundaries, on the other hand, are characterized by plates sliding past each other, and they often offset segments of divergent boundaries such as mid-ocean ridges, leading to the creation of transform faults. Convergent boundaries are where plates are moving towards each other, which can lead to the formation of mountains, volcanic activity, and deep-sea trenches, but not mid-ocean ridges.
A good example to look at where divergent and transform boundaries occur together in an alternating pattern would be along the Mid-Atlantic Ridge, where the transform faults are easily visible, showing how the mid-ocean ridge is broken into segments. Mid-ocean ridges occur at B) divergent plate boundaries.