This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular Motility, Subject name: Ophthalmology
Distance of Muscle 5 from Limbus 
Select and explain. 
A. 4.5 mm, B. 5.5 mm, C. 7,6 mm, D. 10 mm
B: 5.5 mm
Answer: B: 5.5 mm 
Explanation: 5.5 mm (Muscles shown: 1 Superior rectus, 2 Lateral rectus, 3 Inferior rectus, 4 Inferior Oblique, 5 Medial rectus, 6 Superior oblique)