Dysplastic gangliocytoma in a cat is characterised by _________
a. Dysplastic neurons displacing the Purkinje cell, molecular and granular cell layers of the cerebellum
b. A germline p53 mutation
c. Reduced nuclear and increased cytoplasmic PTEN staining
d. Progressive ataxia and lethargy in a dog
e. Markedly increased grey matter of the cerebellum