'Upon Reading the Case, It Was Clear That the Judge's

'Upon reading the case, it was clear that the judge's reason for dismissing the appeal was based upon the mistaken belief that the earlier case law was binding upon the court.' In this statement, how many judges held this mistaken belief?

A) One.
B) Two.
C) More than one, but it is impossible to say how many.
D) All of the judges involved in the decision.