What condition is described by the necessity to pay rent if a subletting tenant does not pay?

The correct answer pertains to the situation where a subletting tenant is responsible for paying rent. In the context of leasing, when a tenant subleases their rental property to another individual, the original tenant remains liable to the landlord for the full payment of rent. This means that if the subletting tenant fails to pay their rent, the original tenant must still fulfill the rental obligations.

Subletting allows tenants to lease out their rented space while retaining responsibility for the lease agreement with the landlord. Therefore, if the subtenant does not pay rent, the main tenant is still obligated to cover that payment, which reflects the nature of the sublet arrangement.

Other terms mentioned, such as Joint Lease and Lease Assignment, describe different relationships and responsibilities concerning tenants and landlords. A Joint Lease typically involves multiple tenants who are equally liable under the lease, while a Lease Assignment transfers the tenant's entire interest in the lease to another party, relieving the original tenant of future obligations. These concepts do not pertain specifically to the situation where a subletting tenant fails to pay rent, making subletting the most appropriate choice.