Which jet stream affects weather in New Mexico?

A. the northern subtropical jet stream

B. the southern subtropical jet stream

C. the northern midlatitude jet stream

D. the southern midlatitude jet stream

New Mexico is in the Northern Hemiphere, so it means that the jet stream will be northern: the jet streams in Southern Hemispheres are Southern.

Also, it it is the subtropical jet stream: the other option, the midlatidute is the same as the Polar jet stream (just another name) and it's more to the north.

The correct answer is then A.