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
Paraneoplastic cerebellar ataxia with anti-Yo antibody positivity is seen in: 
Select and explain. 
A. Breast and ovarian malignancy, B. Breast and lung malignancy, C. Ovarian and small cell carcinoma lung, D. Small cell carcinoma lung and hodgkins disease
A: Breast and ovarian malignancy
Answer: A: Breast and ovarian malignancy 
Explanation: Paraneoplastic cerebellar ataxia is associated with 1. Breast and ovarian cancers (anti-Yo) 2. Small-cell lung cancer (anti-PQ type voltage-gated calcium channel) 3. Hodgkin's disease (anti-Tr) Ref: Harrison, E-18, P-3336.