Which of the following conditions is not a requirement under a professional relationship?

	A.	The service provider is required to perform pro bono (free work) to those in financial need.
	B.	The service provider has a duty to, first act for the benefit of the client.
	C.	Input and output must both is unverifiable.
	D.	The relationship exists because the service provider is in an 'overwhelmingly superior' position compared to the client.