Which one of the following antibodies is most likely to be present?

A 66-year-old woman is investigated for ascites and found to have ovarian cancer. She presents due to ‘unsteadiness’. On examination there is evidence of nystagmus and past-pointing. Which one of the following antibodies is most likely to be present?

Anti-Hu

Anti-Yo

Anti-Ri

Anti-Ro

Anti-La