Which of the following best describes a tenant's rights?

The best description of a tenant's rights is the right to occupy the property under agreed terms. This encompasses the fundamental essence of a lease agreement, which grants the tenant the legal right to use and reside in the rental unit as specified in the lease. These terms typically include the duration of tenancy, rental payment amounts, and other obligations or restrictions that both the landlord and tenant have agreed upon.

This right is inherently tied to the concept of a contract, as the lease serves as a legal binding document that outlines the expectations and responsibilities of both parties. While tenants do have certain rights, these rights are typically defined within the framework of the lease agreement, and tenants must adhere to the terms outlined therein.

The other options describe rights or actions not generally afforded to tenants. For instance, the right to modify the property at will suggests significant changes that would require landlord permission, and not all landlords allow this. The right to sell the property pertains to ownership, which tenants do not possess, and the right to sublet without permission contravenes many lease agreements that require landlords to approve subletting arrangements. Thus, option B accurately captures the essential rights of a tenant within the parameters of a lease.