This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb, Subject name: Anatomy
The weight of the upper limb is transmitted to the axial skeleton by 
Select and explain. 
A. Costoclavicular ligament, B. Coracoacromial ligament, C. Coracoclavicular ligament, D. Coracohumeral ligament
A: Costoclavicular ligament
Answer: A: Costoclavicular ligament 
Explanation: The weight of the upper limb is transmitted to the axial skeleton by Costoclavicular ligament The weight of the upper limb is transmitted as follows: Upper limb to Coracoclavicular ligament to Clavicle to Costoclavicular ligament to Axial skeleton. Ref: Gray's Anatomy The Anatomical Basics of Clinical Practice 41e pg 800,809.