A want is something that someone had the desire for, but doesn't necessarily need. A need however is something that the person may not have a desire for, but is very important.
you have to tell us what book its about mate. theres so many books dickens has written, how are we meant to know which one you're studying?
D) Subject is the element necessary to complete the sentence above.
You already have a predicate (drives), so you don't need that, or a subordinate/independent clause. What you do need is a subject. For example:
<em>Mercedes </em>drives like no other car.
Answer:
adverb cause it qualify a verb
