Suppose you overslept and you're going to be late for work or school. You run out the door to start your car
-not with a quick turn of a key, but by hand cranking: laboriously turning or pulling a hand crank on the
front of the car. Before Charles Kettering invented an electric auto-ignition and self-starter for automobiles
in the early 1900s, starting a car was quite an arduous task. Kettering's invention made it easier for anyone
to start and use an automobile, contributing to the growth of the U.S. auto industry.
Question
The author uses a hypothetical everyday situation in order to
stress the importance of getting to work on time
O show that Kettering's invention was not necessary
O illustrate the sophistication of cars in the early 1900s
o highlight the impact of Kettering's invention on society

You can use process of elimination on this. It's not the first one, because the author praises his invention and says it helped by "contributing to the growth of the U.S", we can eliminate the second one because he isn't writing about how sophisticated cars were, only about the invention. That leaves the last one, which makes the most sense and has been checked.