Which of the Following Characterizes Observations About the Patient Jon

Which of the following characterizes observations about the patient Jon?

A) All of these
B) Jon used "remember" and "know" categories about as frequently as controls
C) Jon appeared to be using a strength signal for "remember" judgments
D) Jon appeared to lack an electrophysiological marker of "remembering"
E) Jon was largely unable to provide recollective details related to "remember" judgments