Which of the Following Individuals Demonstrates Internal Locus of Control

Multiple Choice

 Which of the following individuals demonstrates internal locus of control?

A) Maria, an athlete, believes it was only because of her weak opponents that she was able to win the competition.
B) Monica, who is looking forward to something really important, is very anxious due to her perceived lack of control over the situation.
C) Tim, an employee who recently got promoted, thanks his manager and feels that he is lucky to be promoted.
D) William, a student, strongly believes that by applying extra effort and working hard he will be able to score good marks.