The Difference Between a Harshness Bias and a Leniency Bias

The difference between a harshness bias and a leniency bias is that

A) the former involves selecting employee ratings in the middle of a scale, and the latter involves selecting employee ratings toward the end.
B) the former involves rating employees more severely than their performance merits, and the latter involves rating employees more favorably than their performance merits.
C) the former involves assigning similar scores to items that are near each other on a questionnaire, and the latter involves leaving out items placed close together.
D) the former involves judging others more negatively when they are like oneself, and the latter involves judging others more positively when they are like oneself.