What is suggested by the word "critical" in the term "critical thinking"

A)  Effective critical thinkers tend to be judgmental of others' views. 
B)  Thinking is essential to success in our culture. 
C)  Critical thinkers are vigilant about their thinking. 
D)  The skills of effective thinking are learned early in life.

Critical Thinking

Aiming to impartially examine and appraise a matter with the intention of making a determination.

Judgmental

Pertains to the tendency of forming opinions or conclusions about people or situations often without full knowledge or consideration of the facts.

Vigilant

Being keenly watchful to detect danger or maintaining careful attention to responsibilities; alertness to potential problems or threats.