Answer:
The answer is b. latitude.
Explanation:
The climate control that most directly related to seasonal changes in insolation is latitude; this reflects any position on Earth, and determines the period of daylight and angle/intensity of solar rays being received. In return, the intensity of solar rays and period of daylight/radiation affect the amount of insolation received in different parts of the world: depending on the latitude and angle of solar radiation cast by the sun on different latitudes, different locations will receive different amounts of isolation.
