Imagine Yourself in a Perceptual Experiment Where You Are Shown

Imagine yourself in a perceptual experiment where you are shown four letters,and asked to report the letter that is underlined (only one letter per trial is underlined) ,given the two choices that follow it.Imagine each of the three stimuli (which would be presented one at a time) . Trial I: screen 1: K E L P;screen 2: D or K
Trial II: screen 1: K;screen 2: D or K
Trial III: screen 1: K P L E;screen 2: D or K
What predictions would you make about the average participant's relative speed on these three trials?

A) Trial I should be the fastest.
B) Trial II should be the fastest.
C) Trial III should be the fastest.
D) Trials I and II should be equally fast.