Which of the following best describes "jet streams"?

• A. Wind system with seas and reversal of direction.
• B. Wind blowing from sub-tropical high pressure belts towards the tropical low pressure belts.
• C. Narrow meandering bands of winds which blow in mid latitude near the tropopause and encircle the globe.
• D. Winds blowing from the tropical high pressure belts towards the equatorial low pressure belts.