During the Deposition, Good Expert Witnesses Should Do All of the Following

During the deposition, good expert witnesses should do all of the following except:

A) Listen carefully to the questions to make sure they hear exactly what is being asked
B) Voluntarily talk about something that is important but the attorney didn't ask
C) Before answering, experts pause to give the attorneys for their side an opportunity to object to the question.
D) Not to answer specific questions if instructed by their attorneys.