Posner, Snyder, and Davidson (1980) examined spatial attention using arrows as a prime. Most of the time the arrow pointed to the area where the stimulus would appear, but 20% of the time it did not. They compared reaction times (RTs) when the cue was valid, when it was invalid, and when a neutral cue was presented. Which of the following statements was NOT supported by their findings?Select one:a. Spatial attention is limited in capacity. b. We can attend to two different locations without a reduction in performance. c. RTs were faster for responses to valid cues relative to neutral cues. d. RTs were slower in the invalid condition than in the valid condition.