which type of sentence is this? throughout most of u.s. history, pants were considered shocking attire for…

which type of sentence is this? throughout most of u.s. history, pants were considered shocking attire for women, but the mid - twentieth century saw increased acceptance of this once - controversial clothing item. simple compound complex compound - complex
Answer
Brief Explanations:
A compound sentence has two independent clauses joined by a coordinating conjunction like "but". Here, "Throughout most of U.S. history, pants were considered shocking attire for women" and "the mid - twentieth century saw increased acceptance of this once - controversial clothing item" are two independent clauses joined by "but".
Answer:
B. compound