I think the reason is that i<span>t makes the reader feel sympathy for the conspirators. Besides, if he says that he is an "honorable man" and Antony is at the funeral, we most likely act respectful and have sympathy for the loss. That is why the answer is B. </span>
It comes from serving others I believe.
The answer for that part of speech is preposition
fetching water from the well to the woman's house, chopping firewood for conventional cooking purposes, pounding rice grains, and many others.