Read the excerpt. At the beginning of the mission, since our priority was to identify the origin of the alien’s signal. What is
the most accurate way to describe the excerpt? It is a complex sentence. It is an independent clause. It is a dependent clause. It is a compound sentence.
Explanation: an independent clause is a sentence that has complete meaning on its own (it has at least a subject, a verb and all the necessary complements), a dependent clause is the contrary, is a phrase that, in order to make sense, it needs to be with an independent clause. The given excerpt is a clear example of a dependent clause, because as we can see, it doesn't have complete sense, we can tell that it is missing something.