Answer:
Option (C)
Explanation:
The earth's orbit has directly affected the earth's climate over the last 2 million years as it changes over a due course of time which is caused due to the extraterrestrial forces.
The tilt of the earth's imaginary rotating axis is about 23.5° and it keeps on fluctuating in a range between 21.5° and 24.5°, which takes place over a time period of 41,000 years. This forms a part of the Milankovitch cycle, which led to the experiencing of the episodic ice age on earth.
Thus, the correct answer is option (C).