Answer:
I'm not sure what the answer to the first one is, but the answer to Question 2 is Zeus
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.
C - Macbeth accuses Macbeth of treason
Answer:
The logical answer would be footstep, but since that's not it, the only other thing I could think of would be breath.