<span>b. play music with Peter and the musicians </span>
During the Elizabethan Era, the social class was divided into six classes as they believe that this is the basis of skills, fame, birth and wealth. During this era, the reactions of the servants' and the musicians' to the death of Juliet would show us that social class, unlike those in the upper classes, those in the lower classes display more maturity spiritually in dealing with death.
Your tone
Let's look at the other choices first. Your credibility is your ability to be believed as trustworthy in regards to the subject. Whether you're talking to a group of teenagers or professional adults, your credibility doesn't change. Your clarity also should not change based on the audience because you want to be clear in your message at all times. Also, your purpose should be the same no matter the audience. The only thing that would change is your tone. The way you approach a crowd of teenagers would vary greatly from the way you'd approach a room of professionals.
Because back then they believe that if they didn't see it then it is not there or created for example when the french believe that the earth is flat but we know now that it is round.