Which situation would cause an easement to be extinguished?

An easement is a legal right to use someone else's land for a specific purpose. The situation where the easement is conveyed to the owner of the servient tenement leads to the extinguishment of that easement because it effectively merges the interests in both the dominant and servient estates. When the same person owns both the property benefiting from the easement (the dominant tenement) and the property burdened by it (the servient tenement), the easement is no longer necessary or enforceable, as there is no longer a separate party that requires the easement. This principle rests on the idea that when rights and obligations merge, the easement is effectively eliminated.

In contrast, moving the owner of the servient tenement does not affect the easement itself since easements are typically tied to the land rather than the owner. Similarly, abandonment of the easement can lead to its extinguishment, but it depends on specific circumstances proving intent. Lastly, the sale of the dominant tenement does not extinguish the easement; instead, it typically remains in place and transfers with the property to the new owner. Thus, conveying the easement to the owner of the servient tenement is the situation leading to its extinguishment.