This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy, Development and clinical examination, Subject name: Ophthalmology
Yoke muscle for right superior rectus is 
Select and explain. 
A. Left superior oblique, B. Left inferior oblique, C. Left inferior rectus, D. Left superior rectus
B: Left inferior oblique
Answer: B: Left inferior oblique 
Explanation: Yoke muscles Yoke muscles (contralateral synergists) are a pair of muscles (one from each eye) which contract simultaneously during version movements. Different pairs of yoke muscles are as follows: 1) Right medial rectus and left lateral rectus 2)Right lateral rectus and left medial rectus 3)Right superior rectus and left inferior oblique 4)Right inferior rectus and left superior oblique 5)Right superior oblique and left inferior rectus 6)Right inferior oblique and left superior rectus. Reference :- A K KHURANA; pg num:- 537