Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual. Consider a score to be unusual if its z-score is less than -2.00 or greater than 2.00.Round the z-score to the nearest tenth if necessary.

A test score of 54.0 on a test having a mean of 73 and a standard deviation of 10.

A) 1.9; not unusual

B) -1.9; not unusual

C) -1.9; unusual

D) -19; unusual