Option A
A. The tail is less than 2/3 the length of the head and body.
B. The colour pattern of the fur is silver and black with a crested pattern along the back.
Select

Option B
A. The tail is greater than 2/3 the length of the head and body.
B. The colour pattern of the fur is variable, but not silver and black with a crested pattern along the back.
Select