The complaint, you cant forget that part it is definitely the most important.
Tybalt is the son of Lady Capulets brother, which makes him Lady Capulets nephew and Juliets Cousin. He is related to to them.
Answer:
the answer is a little more complicated than that because the people who work for them have been working hard
The answer is D! Nobody is mentioned but it is clearly talking to somebody so the subject or person is implied!