The first one. I hope it helps :)
There are many techniques that can contribute to the memorability of a speech, for example stressing the main points and explaining them well, linking the ideas in a logical way and providing a strong conclusion.
One technique that does not support memorability is shouting loudly key words: they might remember you but not the content of the speech.
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Answer:
Service benefits the helpers and those helped.
Explanation:
The whole article talks about how service helps not only the community, but the people that do the service.
