How Accurately the Standard Normal Curve Model Predicts the Actual

How accurately the standard normal curve model predicts the actual relative frequency of raw scores depends on three aspects of the data:

A) The raw scores form an approximately normal distribution;there is a large sample N;and the raw scores are theoretically continuous scores measured on an interval or ratio scale.
B) 50% of the raw scores are above and below the median;there is a large sample N;and the raw scores are measured on an ordinal,interval,or ratio scale.
C) 50% of the raw scores are above and below the median;there is a moderately large sample N;the raw scores are theoretically continuous scores measured on an interval or ratio scale.
D) The raw scores form an approximately normal distribution;there is a moderately large sample N;and the raw scores are measured on an ordinal,interval,or ratio scale.