This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Collateral and Cruciate Ligament Injuries, Subject name: Orthopaedics
A football player came with twisting injury to left leg with pain, X ray was normal, but on clinical examination anterior drawrer test, lachman test positive diagnosis - 
Select and explain. 
A. Medial meniscus tear, B. ACL tear, C. PCL tear, D. Proximal tibia fracture
B: ACL tear
Answer: B: ACL tear 
Explanation: Ans. is 'b' i.e., ACL tearo Patient with positive Lachmann test and anterior drawer test suggests diagnosis of ACL tear.