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: Unknown
Which of the following test is positive in Anterior dislocation of shoulder? 
Select and explain. 
A. Thomas test, B. Barlow's test, C. McMurry's test, D. Duga's test
D: Duga's test
Answer: D: Duga's test 
Explanation: • The following signs, associated with anterior dislocation of shoulder.
 
Duga's test
 
Hamilton ruler test
 
Caliway's test