The curved paths of global winds and surface currents are caused by

a. the revolution of the earth.
c. warm air near the equator.
b. the coriolis effect.
d. continental deflection.

The correct answer is option B, The coriolis effect  

Explanation:

The coriolis effect  describe the pattern followed by an object travelling around the earth. This effect is guided by the rotation of earth. Large air currents appear to bend in the right direction in northern hemisphere while the coriolis effect produces reverse condition in the southern hemisphere where air currents bend to the left  

The impact of the Coriolis effect is dependent on velocity of Earth and the velocity of the object and also on the  fluid being deflected by the Coriolis effect

Higher Coriolis effect  are seen when the speed is high or long distances are traversed.  

Fundamental theory of heredity.