whiCh oF thEFollowing ABout thE stuDy is not CorrECt?
A．thE wholE stuDylAstED For two hours.
B．thErE ArE 26pArtiCipAnts in thE stuDy.
C．pArtiCipAnts' EyEmovEmEnts wErE rECorDED.
D．pArtiCipAnts wErEAskED to CAtEgorizE thE piCturEs oF FACiAl ExprEssions.