Which Statement Would Be the Best to Use in a Communication

Which statement would be the best to use in a communication code of ethics for professionals:

A) 'Professionals should communicate in a democratic way; they should take everyone else's opinion into account.'
B) 'Professionals should communicate in a clear way, with a focus on understanding and respect.'
C) 'Professionals must avoid emotion and feelings at all costs and only be logical in their communications.'
D) 'Professionals should communicate in the same way that other professionals communicate; that is best practice.'
E) 'Professionals should be persuasive for the interests of their field.'