Which of the following best defines estates?

The correct understanding of estates involves recognizing them as the rights that individuals have in relation to real property, specifically land and the interests associated with it. The term "estates" typically originates from property law and reflects various forms of ownership or interest in land.

In this context, "rights acquired by tenants over land" accurately describes the concept of estates, as it points toward the legal entitlements or ownership that tenants, or lessees, may hold when they lease or rent property. These rights can include the right to occupy, use, and benefit from the property during the lease term, which is a core aspect of property law.

The other options do not encapsulate the definition of estates. Online bodies for adjudicating disputes refers more to arbitration or mediation, while government actions for public land use relate to zoning or regulatory powers, not directly to individual rights in property. Legal frameworks established by court rulings may pertain to common law or legal precedents but do not specifically define estates in the context of land rights. Thus, B is the most fitting choice regarding the definition of estates.