Answer:
The correct option is D) Humidity levels will rise
Step-by-step explanation:
A rise in humidity means that it is most likely there is going to be a rain.
When blue semi-circle lines with triangles approach red semi-circle lines it is a situation where cold front is approaching a warm front.
The resultant effect is that the warm and cold air both come to a standstill. This will most likely trigger cloud and fog and may even lead to rain.
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