单项选择题

Maureen radiates an unfailing common sense and good humor, although not a false cheery______; she has no illusions about life, and her grace comes from her capability to meet it______.()

A、 mirth… flinchingly
B、 naiveté … head-on
C、 insensitivity … callously
D、 charm… promptly
E、 ignorance … obscurely