The correct opcion is D.
That extract makes reference to that alice went very fast, supposedly like the wind.
The answer to Part B is D which is "not a moment to be lost". This is as it directly links to the idea in Part A that Alice is moving very quickly, possibly running. The logical conclusion from Alice moving quickly is that she has an important matter to attend to which she must do urgently. 'Not a moment to be lost' means that she has to take care of this important/urgent matter as quickly as possible.
