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: Medicine
A 60-year old female presented with decreased movements for the last 2 years with rigidity and vertical large square wave jerks. The most likely diagnosis is - 
Select and explain. 
A. Parkinson's disease, B. Lewy body dementia, C. Multisystem atrophy, D. Progressive supranuclear palsy
D: Progressive supranuclear palsy
Answer: D: Progressive supranuclear palsy 
Explanation: None