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: ENT
A patient with ear discharge presents with diplopia and fever. What is the most probable diagnosis? 
Select and explain. 
A. CSOM, B. Meningitis, C. Lateral sinus thrombosis, D. Petrositis
C: Lateral sinus thrombosis
Answer: C: Lateral sinus thrombosis 
Explanation: Presence of fever and diplopia in a patient with ear discharge suggests lateral sinus thrombosis, an intracranial complication of chronic suppurative ottitis media.