Please HELP!

Which of the following statements about the jet stream is true?

A. The jet stream is located above the ozone layer in the highest region of the atmosphere.
B. The jet stream is located between the ozone layer and the layer where weather occurs in the atmosphere.
C. The jet stream refers to the ocean currents that occur along the ocean's surface and influence low-level winds in the atmosphere.
D. The jet stream is located below the layer where weather occurs in the lowest region of the atmosphere