__________, or the use of one's intellect, is important in all aspects of Decision-Making.

A) Intuition
B) Attitudinal formation
C) Judgment
D) Perceiving
E) Sensing

Judgment involves the use of one's intellect to make a decision based on available information, weighing the pros and cons, and considering various factors. Intuition, attitudinal formation, perceiving, and sensing can play a role in decision-making, but they alone are not enough to make an informed, rational decision. Therefore, choice C is the best answer.