Read the following context and choose the best option to answer the question.
Context: They acted as if they had never seen a car before and if you waved back to them it made them feel so special they would smile from ear to ear . Then after about 100meters of no houses the road came to a stop . There was a large yellow sign that said " Island Jungle Resort " but there was nothing there . No people , no buildings , the sun would be gone in 30min .
Question: What may be the reason for the sun being gone ?
Options: 
A. They went indoors .
B. The sun was behind clouds .
C. It was night time .
D. None of the above choices .


C