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 think it might be A because the part, also and ,marine is a little confusing.
Answer:
I'm fine brotato chip, how are thou friend?
Answer: Some people now consider space colonization an urgent need rather than a possible adventure.
Explanation: