which type of sentence is this? presidents john adams and george h.w. bush both had presidential sons, and…

which type of sentence is this? presidents john adams and george h.w. bush both had presidential sons, and coincidentally, both sons—john quincy adams and george w. bush—were their fathers namesakes. simple compound complex compound-complex
Answer
Brief Explanations:
A compound sentence has two independent clauses joined by a coordinating conjunction (in this case, "and"). The first independent clause is "Presidents John Adams and George H.W. Bush both had presidential sons" and the second is "both sons—John Quincy Adams and George W. Bush—were their fathers' namesakes".
Answer:
compound