This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Squint, Subject name: Ophthalmology
Select the wrong pair of Yolk muscles 
Select and explain. 
A. RSR LIO, B. RSO LIR, C. RMR LMR, D. RIR LSO
C: RMR LMR
Answer: C: RMR LMR 
Explanation: RMR & LLR & Not LMR are yolk muscle Yoke Muscles: *Synergist muscle: Involved in Same Version movement (So one muscle would be of left eye, other would be of right eye.) *Ex- Right eye dextroversion by RLR and LMR is involved.. these two are YOKE muscles. \