Answer:
Compatibility.
Step-by-step explanation:
Relationships between buyers and sellers existed since humans began trading goods and services. Relationships developed in a natural way over time as the buyers and sellers developed trust that is supported by mutual benefits.
Trust is essential to seal a long term buyer seller relationship.
Salesperson gather information from various knowledge bases.
Salespeople have to follow a set code of ethics to maintain high standards of professional conduct.
While there are benefits to developing these types of relationships, it is important to make sure that the other business is compatible with yours.
In this case, the sport equipment company is very compatible with tennis.