Which of the following is a legal right to use another's land for a specific purpose?

An easement is a legal right that allows an individual or entity to use another person's land for a specific purpose. This arrangement is typically formalized through a legal agreement and remains valid even if the property ownership changes. Easements can serve various functions, such as allowing access for utilities, pathways, or drainage.

In contrast, encroachment refers to a situation where one property owner builds or extends onto their neighbor's property without permission, which is often considered a violation of property rights. A license is a permissive, revocable agreement that allows someone to use another's property but does not convey any interest in the land itself, meaning it can be revoked at any time. A lease is a contractual agreement in which one party pays for the exclusive right to occupy and use the property for a specified duration but does not grant the same kind of perpetual usage rights as an easement.

Overall, the specificity and legal nature of permission that easements provide distinguish them from the other options.