Research Found That When Undecided White Voters in the Lead-Up

Research found that when undecided white voters in the lead-up to the 2008 U.S.presidential election were reminded of their race,they were:

A) more likely to vote for the African American Democratic candidate,Barack Obama.
B) less likely to vote for the African American Democratic candidate,Barack Obama.
C) more likely to believe negative reports about the African American Democratic candidate,Barack Obama.
D) more likely to believe positive reports about the African American Democratic candidate,Barack Obama.