Answer:
how many paragraphs does it have to be
I would say that the answer is:
<span>c. tolerance and consideration.
Hope this answer helps!</span>
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.