Which of the Following Best Describes the Standardized (Z) Score

Multiple Choice

Which of the following best describes the standardized (z) score for an observation?

A) It is the number of standard deviations the observation falls from the mean.
B) It is the most common score for that type of observation.
C) It is one standard deviation more than the observation.
D) It is the center of the list of scores from which the observation was taken.