Hmmm, who would that be? The non-Catholics who virtually always post Scripture and appeal to that as their final authority in all things spiritual?
Or the Catholics who virtually always post from the Church fathers and the CCC and appeal to *tradition* (key in Fiddler on the Roof music) and the magisterium for their final authority?
unable to justify his positions from the scripture?
B.
Definitely B.
The Church fathers and the Holy Tradition are indeed necessary in order to understand the scripture, but on this topic the scriptural support for the purgatory is clear and the Protestants obfuscate it. Same of the fantasy of salvation by faith alone or the rule of faith by the Bible alone. There are things where we rely on Tradition in a great part, but not on these fundamental Protestant heresies.