Respuesta :
Complex sentence. Because the first one is an dependent clause and the next one is the independent clause
The piece in bold shows an example of A. a complex sentence.
- A complex sentence is determined when there is only one independent (main) clause and at least one dependent (subordinate) clause.
- In complex sentences, the clauses are joined by subordinating conjunctions, including since, until, because, etc.
- While independent clauses can stand as complete sentences, the use of subordinating conjunctions make subordinating clauses dependent on the main clauses.
Thus, since the whole sentence is in bold letters, it is an example of a complex sentence.
Read more about complex sentences at https://brainly.com/question/22448394