Wayne grants his cousin, vinnie, a franchise in wayne's local sandwich shop. wayne writes the agreement so that he controls every detail of vinnie's shop such that it is exactly the same as the original shop. he even consults with vinnie about hiring employees and safety practices. one of vinnie's employees fails to clean up a spill and a customer is injured. wayne may be liable to the customer

Agence law.

Explanation:

Agency law can be defined as an area of commercial law that deals with the relationship between a party that has legal authority to act in place of another, called an agent.  The agent can be an individual, or some partnership or corporation. The agent deals with contractual, almost contractual and non-contractual fiduciary relationships.

The powers of the agency's law are to deal with contractual, almost contractual and non-contractual fiduciary relationships involving an agent.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link :

answer; (cash) is the best out of the above; good luck