Which of the Following Was a Liability for President Obama

Which of the following was a liability for President Obama as he entered his reelection campaign of 2012?

A) He had authorized a constitutionally questionable raid that killed Osama bin Laden.
B) The U.S. Supreme Court had struck down most of the Affordable Care Act.
C) He had failed to provide an authentic Hawaiian birth certificate to prove the legitimacy of his presidency.
D) Unemployment remained high even though the recession was officially over.
E) Americans disapproved of the troop withdrawal from Iraq late in 2011.