The correct answer to this is he heard her when she was unaware.
The answer is A. Politicians have no respect for other's privacy. The use of the phrase "the hog-pen was still empty" suggests that politicians are of the same level as pigs. They are animals who cannot even take care of themselves; who are foul-smelling; and greedy. Moreover, they are not ashamed to intrude people's private lives for the sake of their selfish ambitions and vested interests.
