Which factor plays the greatest role in determining the climate in a highland region?
proximity to large bodies of water
elevation
latitude
ocean currents

The correct answer is B. Elevation

Explanation

Altitude or elevation is the name given to the number of meters above the level of the sea at which a point is located. Altitude is a factor that directly affects the temperature of a certain point on the planet, for example, in tropical areas where humidity is highest, the temperature decreases 1° Celcius for every 180 meters of elevation. While in subtropical or dry areas the temperature decreases 0.5° Celcius for every 180 meters of elevation. Therefore, in the coastal areas where it is at sea level, the temperature is usually warmer, while in the tops of the mountains we find snowfalls with low temperatures. According to the above, the correct answer is B. elevation