Participants in a Tachistoscopic Procedure Are Shown the Sequence CQRN

Participants in a tachistoscopic procedure are shown the sequence CQRN. Participants misperceive this string as CORN. In a feature-net account, which of the following statements probably does NOT contribute to this effect?

A) O is a more frequently used letter in English than is Q. Therefore, the O-detector is better primed.
B) CO is a more frequent letter pair in English than CQ. Therefore, the CO-detector is better primed.
C) A well-primed bigram detector will fire even if the letter detectors feeding into that bigram detector are firing weakly.
D) Feature nets are generally unable to identify nonwords.