Which of the Following Is an Example of Statistical Discrimination

Which of the following is an example of statistical discrimination?

A) An employer hires only white workers even though there are otherwise identical African-American workers available at lower pay.
B) Female students in college business schools are overrepresented in human resource management courses and underrepresented in finance courses.
C) A young woman who plans to work for only five to seven years after graduating college decides that getting an advanced degree "just won't pay off."
D) A firm hires a man rather than a woman for a specific job because, on average, women have higher rates of absenteeism than do men.