I think tunnel is the answer because it is an object that in the place that dark.
I also think that it is train but i will go with B. tunnel.
<u>Dark and hero are not objects</u>
I think it's...
1) the cave was dark and gloomy.
2) The cave was spooky and narrow.
3) Jack could hear a spooky noise in the cave.
4) Jack could see a black bat in the cave.
( hopefully this is correct, sorry if by chance my answer is incorrect)
Option A is the best answer but the first three are correct