"he had been trying to fancy them causeless, but could not. he had been saying to himself - " it is nothing but the wind in the chimney- it is only a mouse crossing the floor ," or " it is merely a cricket which has made a single chirp." yes, he had been trying to comfort himself with these suppositions: but he had found all in vain."
which common word best replaces suppositions in the sentence?
a) images
b) guesses
c) signals
d) warnings