In Some Procedures, Participants Are Helped by an Interruption During

In some procedures, participants are helped by an interruption during their attempts at solving a problem. In explaining this effect, which of the following hypotheses seems LEAST plausible in light of the available evidence?

A) The interruption provides an opportunity for participants to gather further information about the problem.
B) The interruption provides an opportunity for frustration or fatigue to dissipate.
C) The interruption allows participants to forget their earlier approaches to the problem, thus enabling a fresh start.
D) The interruption allows an opportunity for unconscious problem solving to occur.