Scores on the American College Testing (ACT) College Entrance Exam

Multiple Choice

Scores on the American College Testing (ACT) college entrance exam follow the Normal distribution with mean 18 and standard deviation 6. Wayne's standard score on the ACT was -1.1.
Wayne scored better than approximately

A) 1.1% of the people who took the exam.
B) 13.57% of the people who took the exam.
C) 11.40% of the people who took the exam.
D) 86.43% of the people who took the exam.