Which of the following is Not the characteristic of grade-three thinkers?
A.Grade-three thinkers are prejudiced.
B.Grade-three thinkers tend to support each other as they have strong solidarity.
C.Grade-three thinkers are self-contradictory and hypocritical.
D.Grade-three thinkers are patriotic.
正确答案：Grade-three thinkers are patriotic.