This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bony dysplasia and soft tissue affection, Subject name: Orthopaedics
[{'content': "&;Tennis elbow', is characterized by - \nSelect and explain. \nA. Tenderness over the medial epicondyle, B. Tendinitis of common extensor origin, C. Tendinitis of common flexor origin, D. Painful flexion and extension", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tennis elbow is also known as lateral epicondylitis . It is a condition characterised by pain and tenderness at the lateral epicondyle of the humerus due to non specific inflammation at the origin of the extensor muscles of forearm. Although it is sometimes seen in tennis players, other activities such as squeezing clothes, carrying suitcase etc. are frequently responsible Reference-Essential ohopaedics- Maheshwari-5th edn-pg no 302', 'role': 'assistant'}]