Option B
A. The ratio of the 3rd metacarpal to the 4th is less than 90%.
B. The upper canine is not in contact with the posterior upper premolar and the two are separated by a very fine gap.
Select

Option A
A. The ratio of the 3rd metacarpal to the 4th is generally greater than 90%.
B. The upper canine is in contact with the posterior upper premolar.
Select