All of the above.
In Act 3 of "Romeo and Juliet," Juliet's character develops significantly. She becomes stronger and more assertive as she stands up for her love for Romeo, even in the face of her parents' demands. Additionally, her determination to control her own fate becomes evident, particularly after the fallout from Tybalt's death and her parents' insistence on her marrying Paris. Furthermore, Juliet feels disillusioned and betrayed by the Nurse when she advises her to forget Romeo and marry Paris. This culmination of events showcases Juliet’s transformation into a more independent and resolute character.