Which of the following best describes air circulation at high latitudes?
A) Cold dense air rises at the poles, flows outward away from the poles, and rises between 60 and 45 degrees latitude.
B) Cold dense air sinks at the poles, flows outward away from the poles, and rises between 60 and 45 degrees latitude.
C) Cold dense air sinks at the poles, flows outward away from the poles, and sinks between 60 and 45 degrees latitude.
D) Cold dense air rises at the poles, flows outward away from the poles, and sinks between 60 and 45 degrees latitude.
B) Cold dense air sinks at the poles, flows outward away from the poles, and rises between 60 and 45 degrees latitude.
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