C is a given statistic, and a pertinent point. Out of all the answers I feel as if it's the strongest.
D and E are also answers that add value to the role of the self-driving car.
A and B don't claim anything about the value of a self-driving car and are just observations.
Answer:
So that its easier to find the books that we need.
Explanation:
If you type this question in the white search bar on the main page. someone else asked this. It's a good answer
John Donne has created Metaphysical Conceit - an extended metaphor two very unlike things.
P.S. If this answer helped you, please, make sure to say "Thanks" just below my answer. It will help me a lot.