(4.) What kind of sentence is: Niki was a new student in Vanessa's class. (A) compound (B) simple (C) complex (D) interrogatory

This sentence is a simple sentence. It consists of a single independent clause that conveys a complete thought: Niki was a new student in Vanessa's class. It doesn't include any conjunctions or dependent clauses that would make it compound or complex. When identifying sentences, look for independent and dependent clauses. Remember, independent clauses can stand alone as a complete thought, while dependent clauses cannot. In this case, if you can picture how the sentence stands strong by itself and doesn't need a friend to complete its thought, it's likely simple!