Romeo is already married to Juliet This is the correct answer.
Juliet's father has organised Juliet's wedding. Capulet has arranged Juliet's marriage to Paris but she is already married to Romeo. Friar Lawrence married them in secret. Juliet cannot wake up because she has drunk the potion the Friar gave her. The idea is that she looks dead . In this way, she will not marry Paris and will be able to get reunited with Romeo.
These options are not right:
.The musicians will not arrive on time ( The focus is not put on the musicians. )
-Capulet approves of the match to Paris. ( This is true but it does not create any suspense)
-the nurse will be unable to rouse Juliet ( This is what will happen but it is a consequence of the secret marriage).