Is there any answer chocies or...
The answer is D.
Compound sentence uses one independent clause and one dependent clause. In option D, “after they finished studying” is the dependent clause. “Juan and Maria went to the movies” is the independent clause.
What are the sentences available prior to the question?
Answer:
As he is speaking, he has a section of the book readily prepared as a reference.
Answer:
<h3>A peaceful place is somewhere you can go to slow down, reflect, engage in enjoyable activities. You can be alone or with others who you find relaxing to be around. A place that doesn’t demand anything of you or expect you to be someone you’re not – where you can just be.</h3>