Judging from the context, "inept" (Line 2, Para.3) probably means ______.
A) foolishly unsuitable C) inactive
B) unable to handle job D) industrious

A．Most Americans assess themselves as above average.
B．American doctors overestimated how well they had performed on a test of medical diagnoses.
C．American gun enthusiasts thought they knew more than they actually did about gun safety.
D．All of the above.

A．Students at Cornell University often rated themselves highly even when they flubbed all questions in a reasoning test.
B．Grammar was an area in which objective knowledge was helpful in determining competence.
C．Participants in the test estimated their sense of humor by about 16 percentage points.
D．Students scored better on a logical reasoning test but rated themselves lower.