This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head & Neck, Subject name: Anatomy
Action of superior oblique is: 
Select and explain. 
A. Elevation, Intortion, Adduction, B. Depression, Intortion, Adduction, C. Elevation, Intortion, Abduction, D. Depression, Intortion, Abduction
D: Depression, Intortion, Abduction
Answer: D: Depression, Intortion, Abduction 
Explanation: Ans. D. Depression, Intortion, AbductionMusdePrimarySecondaryTertiaryMedial rectusAdduction--Lateral rectusAbduction--Inferior rectusDepressionExtorsionAdductionSuperior rectusElevationIntorsionAdductionInferior obliqueExtorsionElevationAbductionSuperior obliqueIntorsionDepressionAbduction