Final answer:
The suffix -ptosis in biology refers to a condition characterized by the downward displacement or prolapse of an organ or body part, such as breast ptosis or eyelid ptosis.
Step-by-step explanation:
The suffix -ptosis in biology refers to a condition characterized by the downward displacement or prolapse of an organ or body part. It is commonly used to describe conditions such as breast ptosis (sagging or drooping of the breasts) or eyelid ptosis (drooping of the upper eyelid). Therefore, the correct answer is option 3) Both A and B.