Which of the Following Situations Would Detract the Most from the Audience's

Which of the following situations would detract the most from the audience's trust in you as a speaker?

A) You will derive personal benefits if the audience accepts your proposal, but you do not reveal this to the audience.
B) You will derive personal benefits if the audience accepts your proposal, but you confess this to your audience and then show them how the proposal will benefit them as well as you.
C) You have credentials in the area about which you are speaking.
D) You cite impartial third parties who support your position.