Answer
D
Explanation:
This is because you want to know what it is that you just read that is the most important part
This is a complex sentence it includes a subordinate clause (one that CANNOT stand by itself), and a dependent clause. You can tell this because if I were to walk into a room and say, "When K and C read the same foldable....", you would be waiting to hear the rest, wouldn't you? A compound sentence has two independent clauses joined by a comma and a coordinating conjunction (but, and, for, nor, or, so, yet). A simple sentence is just an independent clause.
People are driving their cars like maniacs tonight. There must be a full moon. can be considered as a Post hoc ergo propter