In Which of the Following Situations Would We Expect the Fastest

Multiple Choice

In which of the following situations would we expect the fastest response time?

A) The stimulus being presented to the participant is identical in form to the stimulus used as the warning signal.
B) The stimulus being presented to the participant is markedly different from the stimulus used as the warning signal.
C) The stimulus being presented to the participant is the stimulus the participant was expecting.
D) The stimulus being presented to the participant is identical in form to the warning signal but is different from the stimulus the participant was expecting.