Answer:
b. cumulonimbus
Explanation:
Cumulonimbus clouds are big clouds that "stack onto each other" which creates massful of rain and wind caused by warmth in the air. So the answer is:
The dark cumulonimbus cloud was a sure sign that it was doing to storm.
i think b
they pull objects closer together like a magnet
Third person omniscient
We cannot do this we haven't read the stories
