You should use the markings that help with searching, for example, if you add quotation marks you will search for exactly what you typed in that word order, or if you add minus before something, you will search for everything that does not contain that word, and there are numerous other markings that can be used to help you search better.
You would write an informational essay
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.