which type of sentence is this? albert einstein was best known as a brilliant physicist and the developer of…

which type of sentence is this? albert einstein was best known as a brilliant physicist and the developer of the theory of relativity, but he was also an accomplished violinist. simple compound complex compound - complex
Answer
Brief Explanations:
A compound sentence has two independent clauses joined by a coordinating conjunction (in this case, "but"). The two independent clauses are "Albert Einstein was best known as a brilliant physicist and the developer of the theory of relativity" and "he was also an accomplished violinist".
Answer:
B. compound