This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
Last ocular muscle to be involved in Grave's disease? 
Select and explain. 
A. Inferior rectus, B. Lateral rectus, C. Superior rectus, D. Inferior oblique
D: Inferior oblique
Answer: D: Inferior oblique 
Explanation: Ans. is 'd' i.e., Inferior oblique Order of involvement (Mnemonic : IM SLO(W)) :- Inferior rectus > medial rectus > superior rectus > Lateral rectus > obliques.