Read the first sentence of the text:
There never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned how to kindle one easily.

What is the main purpose of this sentence in the essay? (5 points)

To describe the misery of early human existence
To explain how early fires were started
To suggest humans have an easier life than we once did
To support the idea that matches really changed human life