The answer is A. "plotted" is an action, linking verbs refer to things such as am is are was were, also known as "be" verbs which often indicate a state of being. So when I say: " The child is wet" I'm Linking "child", the noun, to "wet" the adjective. I hope that helps explain the concept some.
Long sentences
If an author uses long, extended sentences, it will create more of a long, slow, page for the reader. Short sentences increase the pace and make it feel faster, while long sentences can lull the reader into a slower rhythm.
It would help if you gave us the sentence to figure out the question.
The repetition of "you" in any sentence would imply that the speaker is talking to a group of people or one person in particular as in yourself.