Final answer:
The suffix referring to pain is -dynia. Option(B)
Step-by-step explanation:
The correct answer is B. -dynia. This suffix is commonly used in medical terms to refer to pain. For example, "arthritis" is a condition characterized by joint inflammation, and the word is derived from the Greek words arthron, meaning "joint," and -dynia, meaning "pain." Therefore, when you see the suffix -dynia in a medical term, it indicates that pain is involved.