Answer with Explanation:
Promises of change (speaks to wants, needs and emotions) is the best way in order to convince me into joining the protest.
Since the speaker is asking people to support and join the protest in order to save the community homeless shelter, then it is best that he motivates us, his listeners, through "emotions."
The speaker may show<em> sadness</em> to the listeners by using a<em> soft voice</em> regarding what will happen to the lives of the people who are homeless once the upscale hotel will be built. This will touch the audience in a way that they'd be more than willing to help and join the protest. In this way, <u>they will also be acting upon the speaker's request.</u>
So, this explains the answer.
