This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bones Joints and Ligaments, Subject name: Anatomy
A 19-year-old football player was hit on the lateral side of his knee just as he put that foot on the ground.Unable to walk without assistance, he is taken to the hospital. An MRI examination reveals a torn medial collateral ligament. Which structure would most likely also be injured due to its attachment to this ligament?, 
Select and explain. 
A. Medial meniscus, B. Anterior cruciate ligament, C. Lateral meniscus, D. Posterior cruciate ligament
A: Medial meniscus
Answer: A: Medial meniscus 
Explanation: The medial meniscus is firmly attached to the medial (tibial) collateral ligament. Damage to the medial collateral ligament often causes concomitant damage to the medial meniscus because of this relationship. The anterior cruciate ligament may be torn when the knee is hyperextended. The lateral meniscus is not attached to the medial collateral ligament but receives muscular attachment to the popliteus muscle. The posterior cruciate ligament also lies outside of the synol cavity and limits hyperflexion of the knee.