The answer is C. i did the same test. Hope this helped!!!!!
A, the author wants us to introduce us to the character and events that will cause the conflict.
At the dairy factory, the centrifuge separated the cream from the milk.
I hope this helped!
This "italicized" part of the sentence is an adjectival dependent clause. It acts as an adjective to the word motorist and cannot stand alone without putting it with an independent sentence, such as "The motorist lost his way."
