PLEASE HELP IM TIMED! WILL GIVE BRAINLEST!!

When the doctor watches Lady Macbeth sleepwalking in Act V of The Tragedy of Macbeth, he

A. prescribes her a potion.
B. tells Lady Macbeth's servant to make certain she gets back to bed.
C. goes after her to awaken her gently.
D. is completely baffled.