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: Anatomy
Action of inferior oblique ? 
Select and explain. 
A. Adduction, B. Depression, C. Extorsion, D. Intorsion
C: Extorsion
Answer: C: Extorsion 
Explanation: Ans. is 'c' i.e., Extorsion MusclePrimary ActionSecondary ActionSuperior rectusElevationAdduction and intorsionInferior rectusDepressionAdduction and extorsionMedial rectusAdduction Lateral rectusAbduction Superior oblique Intorsion Abduction and depression Inferior obliqueExtorsion Abduction and elevation