The correct answer is option C. "The settlers moved into the unknown and left the familiar behind". A compound verb, also known as complex predicate is a multi word complex that functions as a single verb. In the sentence "The settlers moved into the unknown and left the familiar behind" the compound verb is used in the form of V + V, were the verbs are "moved" and "left".
False, the author just has to put enough details and opinions in the text, the the audience can feel what the author feels. That is called authors purpose.