What Does It Mean to "Use Appropriate Language" When Communicating

Multiple Choice

What does it mean to "use appropriate language" when communicating test results to a client?

A) Explain results in language consistent with the user's manual
B) Explain results only in written communication,such as a formal report
C) Explain results only verbally,since some clients might not be able to read
D) Explain written and verbal results in a way the client understands