Refer to the Figure

Refer to the figure.
Which statement explains the significance of the results shown in the figure?

A) Due to inhibition of return, the longer reaction time after an invalid stimulus is directly proportional to the delay between the invalid stimulus and the target stimulus.
B) When the delay between a valid cue and the target stimulus is long, subjects focus everywhere else, lengthening their reaction time for detecting the target.
C) The phenomenon in which shorter times between a valid stimulus and the appearance of the target stimulus are associated with shorter reaction times for detecting the target stimulus is called inhibition of return.
D) Once a subject has looked toward a stimulus, their ability to detect a target stimulus in the same location is inhibited.