Final answer:
Ridge push, a gravity-driven force that contributes to plate tectonics, is found at divergent boundaries, such as the Mid-Atlantic Ridge, where new seafloor forms and older lithosphere slides away from the ridge. So the correct answer is Option B.
Step-by-step explanation:
You would find ridge push at a divergent boundary. Ridge push refers to a gravity-driven force that results when the elevated mid-ocean ridges, which form at the divergent plate boundaries, push the lithospheric plates toward the subduction zones.
An example of a location where ridge push occurs is the Mid-Atlantic Ridge, where the North American Plate and the Eurasian Plate are moving apart. As new magma rises and cools at the ridge to form new seafloor, the older, colder, and denser lithosphere slides down away from the ridge. This process of sliding under gravity contributes to the movement of the plates.
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