Answer:
A. Do not expect the members of the audience to change their minds after the speech. Look for small gains, such as a simple nod of approval.
Step-by-step explanation:
Members of an unwilling audience would take time to convince. It is best to look for the small gains in parts of the audience, use these as an "in" with the crowd. When performing your speech it is, of course, good to use inflated language but not to the extent that you can't verify your knowledge. An unwilling audience may be difficult to convince but it is never impossible. And, discussing your knowledge with the audience before is not an effective strategy. Your words should show your knowledge.