Answer:
b. motivating the audience to respond
Step-by-step explanation:
To motivate and to influence are the most important factors which are to be kept in mind while delivering any speech. Public speeches are intended towards either motivation or influencing the general public. Providing proper and extensive information about the topic helps the speaker to educate his audience about the topic. In the given situation, the primary motive of Dan was to motivate his audience to go and cast their vote in the coming election. He did this by motivating and educating them about the process.