<prompt> Primary action of inferior oblique muscle is -AbductionAdductionExtorsionElevation  <response>: Ans. is c i.e., Extorsion MusclePrimary ActionSecondary ActionSuperior rectusElevationAdduction and intorsionInferior rectusDepressionAdduction and extorsionMedial rectusAdduction Lateral rectusAbduction Superior obliqueIntorsionAbduction and depressionInferior obliqueExtorsionAbduction and elevation 