Below are the choices that can be found elsewhere:
a) "The detachment that came here the other day," replied the voice.
b) "My men and I have lost our way in the forest since morning. Open the door or I'll break it down!"
c) They entered, covered with snow, their helmets sprinkled with a creamy-looking froth, which gave them the appearance of meringues.
d) They had placed their rifles and helmets in a corner and waited for supper, as well behaved as children on
The answer is D.