6. (B)
Question Type: Application
The passage is an example of a good deed actually working out well for the person doing the good deed. Answer (B) expresses this.
(A) misses the point, and also uses language that is too extreme: the "only" way?
(C) is certainly not supported by the passage.
(D) is very tempting, but can we say that it is "usually" in one’s "best" interest to perform good deeds? This language goes a bit too far. Compare it with the correct answer (B): good deeds "sometimes" have positive consequences.
(E) is too extreme: "must" have community support?
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