The correct answer to this question would be is a compound sentence. A compound sentence is when there are two parts of a sentence that can work alone as complete sentences, but which are combined into one sentence with the use of a conjunction (and, but, etc.). In this case, "I watched the movie" and "I didn't like it" can stand on their own as separate sentences. However, they are put together into one sentence by the word "but," a conjunction, which classifies this sentence as compound. I hope this helps you!
Adding -s is the most common. for example: books, cups, pencils, etc. -es might have been the one that confused you, but that isn't a super common ending for plurals--instead, a more common one would be "-ies" which is when you drop the y (berry becomes berries, for example).
The correct answer is C. complex.
A complex sentence contains one independent clause and at least one dependent clause. Here, the independent clause is <em>Galileo, the first astronomer to use a telescope, confirmed the theory </em>and the dependent clause is <em>that the earth and planets circle the sun.
</em>A is incorrect because a simple sentence contains only one independent clause; B is incorrect because a compound sentence contains at least two independent clauses; D is incorrect because a compound-complex sentence contains one independent clause and at least two dependent ones.
