Mr X Thinks That Barack Obama Became President of the United

Mr. X thinks that Barack Obama became president of the United States because-even though he is not that brilliant or talented-he made a real effort to campaign well in 2008. But Mr. Y thinks that Barack Obama only became president because he was "in the right place at the right time," and had good luck. Social psychologists would say that Mr. X is making ____ attributions for Obama's success, while Mr. Y is making ____ attributions.

A) internal and unstable; external and unstable
B) external and stable; internal and stable
C) internal and stable; external and unstable
D) external and unstable; external and stable