The anser is D: compound. A compound sentence is when two or more independent clauses that have related ideas are joined with a coordenator (for, and or but) or a semicolon. Independent clauses can stand alone as a complete thought. They are not dependent of one another to express a complete thought, but they join similar ideas.
I say A or C if I’m wrong sorry
I believe it is a "Fused" sentence because it includes two main clauses. hope this helps
Vocabulary specific to a subject is called technical vocabulary. For example: A Year 1 science unit on living things may require words that are not yet part of students' vocabulary – habitat, prey, offspring.
I hope this helps!!