Final answer:
Ophelia undergoes significant changes throughout the play Hamlet, going from a dutiful and polite young woman to a mad and confused one as a result of Hamlet's behavior and Polonius's death.
Step-by-step explanation:
Ophelia undergoes significant changes throughout the course of the play Hamlet. In the beginning, she is dutiful and polite, obediently following her family's instructions. However, as a result of Hamlet's erratic behavior and the death of her father, Polonius, she descends into madness. Her madness leads to her tragic demise. The play explores the effects of Hamlet's behavior and Polonius's death on Ophelia, as well as her transformation from a obedient young woman to a confused and mad one.