This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
McMurray's test is positive in the injury of - 
Select and explain. 
A. Anterior cruciate ligament, B. Posterior cruciate ligament, C. Medical meniscus injury, D. Popliteal bursitis
C: Medical meniscus injury
Answer: C: Medical meniscus injury 
Explanation: Tests for meniscal tears 

McMurray's test
Apley's grinding test
Thessaly test