Charlie Campaigns for the Red Cross and Can Give a Dozen

Charlie campaigns for the Red Cross and can give a dozen reasons why people should donate blood,but he does not donate because he once fainted at the sight of blood,According to Cacioppo et al,(1997) ,Charlie's behavior could be further evidence that ______,

A) attitudes are bidimensional
B) attitudes are more swayed by emotion than by cognition
C) attitudes are more swayed by direct experience than by cognition
D) negatively valenced reactions tend to be stronger determinants of attitude than positive ones