The Important Finding of Carrasco Et Al

Multiple Choice

 The important finding of Carrasco et al.'s (2004) research was that _____.

A) two physically identical gratings will always be perceived the same
B) the attended-to grating is perceived to have a higher contrast than another, identical grating
C) the attended-to grating is perceived to have a lower contrast than another, identical grating
D) the attended-to grating is perceived to have a higher contrast when compared to a non-identical grating