All Except One of the Following Are Ways That Potkay

All except one of the following are ways that Potkay and colleagues solved some of the problems of the TAT in a research project they did. Which is NOT one of their solutions?

A) They had subjects respond to some new cards that were assembled using the same criteria used by Murray in coming up with the original cards.
B) Single figures were considered.
C) Use of the Adjective Generation Technique avoided scaling problems.
D) Subjects were allowed to use any concepts contained in their repertoires of words.