Respuesta :
Answer:
D). Provided that Derek's parents said within the limits of the plan he could have a cell phone .
Explanation:
A dependent or subordinate clause is demonstrated as the clause that begins with a relative pronoun or subordinate conjunction and is dependent on the principal clause to accomplish its meaning.
As per the question, option D displays the most appropriate way(syntactically and semantically) to add a dependent clause to sentence 1 and making it a complex sentence without disturbing its original meaning. It successfully adds the dependent clause('provided that Derek's parents said within the limits of the plan') which relies on the principal clause('he could have a cell phone ) to accomplish its meaning. Thus, option D is the correct answer.
