Answer:
B. argues that everyone can do something to make a positive impact in the world.
Step-by-step explanation:
Supporting evidence in the text:
"Any one of us, however small and helpless we may feel, can spark unimagined changes."
"...quite often, it will be the small things that all of us can do that will have the most impact."
"...we can all take a little time to do a little deed of kindness."
C is not correct because: "The big, sweeping, revolutionary actions are always most noticeable." The speaker says they are most noticeable, but he does not say they are needed.
A is not correct because: "There is still so much to be done both in distant lands and closer to home in our own communities." The speaker does not suggest the need is greater in distant lands.