Google will help you a lot if you research
The second option is correct
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.
I would say what type of work you do. It shows what the person is interested in and what the work they do and will be doing is going to look like. It also opens up information about who they are.