What Is the Principal Advantage of Cultivating a Relationship with Third-Party

What is the principal advantage of cultivating a relationship with third-party relocation companies?

A) clients satisfied with their relocation will refer others to use the agent's services
B) it is likely to result in an agent receiving work in a community based on reputation alone
C) once a relationship is established, the company is likely to contact the seller representative to help in the future
D) most people look online before anything else and the relationship with the company ensures an online presence
E) clients may contact the seller after being impressed by their expertise