单选题 It can be inferred from the passage that during yearly equinoxes, jet streams tend to

• (A) move at velocities slower than those at which they move the summer but faster than those at which they move in the winter
• (B) move from toward the east from the west in accordance with the deflection process caused by the Coriolis force
• (C) move at velocities faster than those at which they move the summer but slower than those at which they move in the winter
• (D) move at velocities equal to those of other planets that have similar polar temperature gradients
• (E) move at velocities equal to that of the centrifugal motion that causes the deflection of the jetstream's direction