How did Chief Justice Roberts surprise observers in 2012?

A) He declared openly that he was gay.
B) He openly admitted to political partisanship.
C) He voted to affirm the constitutionality of the Affordable Car Act.
D) He publicly chastised Clarence Thomas for failing to engage in the court's business.

Chief Justice Roberts

John Roberts is the 17th and current Chief Justice of the United States, serving in this role since his nomination by President George W. Bush in 2005.

Affordable Car Act

Commonly known as the Affordable Care Act or Obamacare, a comprehensive healthcare reform signed into law in 2010 in the United States to increase health insurance quality and affordability.

Constitutionality

The quality of being in accordance with a political constitution, especially with respect to its legal and procedural validity.