C) So dark, we couldn't find our way from the car to the hunting lodge without flashlights.
A better sentence would be: We couldn't find our way from the car to the hunting lodge without flashlights because it was so dark.
She is speaking about times in which man becomes most desperate that in times where one is attacked, hurt or in a position from which something awful may occur they become their most powerful. This can be related to times where you struggled and found strength within yourself to do what you thought was impossible.
I would need more information to help you. Sorry
The answer is D
Explanation: In the second half of the passage it states that he haid sent them a "token of his very great affection". This of course means that the answer has to be D: the children’s host in Chesham still cared about them after they left.