This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
Which of the following rib is known as floating rib? 
Select and explain. 
A. 8, B. 9, C. 10, D. 11
D: 11
Answer: D: 11 
Explanation: Ans. D 11Ref: Netter's Clinical Anatomy, 3rd ed. pg. 89* The 11th and 12th ribs are floating ribs as they are free at their ends.* The 8th, 9th and 10th ribs are false ribs as they are joined to form cartilage of rib immediately above.* The first 7 pair of ribs are true ribs.