Final answer:
a) Open listing agreement
An arrangement where a landlord compensates a broker only if they are the direct cause of finding a tenant is known as an open listing agreement.
Step-by-step explanation:
When a landlord promises to compensate a broker for procuring a tenant, provided the broker is the procuring cause, this arrangement is known as a(n) open listing agreement. This type of agreement means that the broker will be paid a commission only if they are directly responsible for finding a tenant who enters into a lease agreement with the landlord. In contrast to exclusive listing agreements, open listing agreements allow a landlord to hire multiple brokers, and only the broker who brings in the tenant will be compensated.