I say b because I don’t see a claim neither good reasoning
A living, breathing audience makes speechmaking one of the most personal, exciting, and empowering forms of communication
• Speakers who fail to connect with their audiences will also fail to achieve their purpose; your purpose should not be fixed or inflexible; the more your learn about your audience, the more likely you will modify your purpose in small ways or even change it radically
Character vs. self I think, but it could be character vs. others.