Could someone please help me with this one simple geography question? I can't decide between B) or D) ... (picture attached)

Could someone please help me with this one simple geography question I cant decide between B or D picture attached class=

Respuesta :

The answer would be D because it says Which is NOT a major factor, and a mountain barrier has nothing to do with climate, or how it changes, while latitude, regions, and ocean currents could be factors.