Basketball is now played at many different levels of competition. It is popular at every level. What is the best way to combine the two sentences or clauses? A. Basketball is now played at many different levels of competition, and is popular at every level. B. Basketball is now played at many different levels of competition, but it is popular at every level. C. Basketball is now played at many different levels of competition, and, it is popular at every level. D. Basketball is now played at many different levels of competition, and it is popular at every level.