The answer is C. The Caine criteria are as follows: 2 or more of (1) dietary deficiency defined as BMI<18.5 or >10% weight loss in the previous 2 months; (2) memory impairment - positive 4A's test (delirium screening instrument) or <3/5 delayed recall on MOCA); (3) Cerebellar dysfunction, evidenced by wide-based gait or more than 3 deviations in 10 steps of heel-to-toe walking; and (4) Oculomotor abnormality, defined as nonphysiological nystagmus or paralysis of eye movements.

Publication reference : Caine D, Halliday GM, Kril JJ, Harper CG. J Neurol Neurosurg Psychiatry 1997; 62: 51-60
Reference URL: https://pubmed.ncbi.nlm.nih.gov/9010400/