Which of the following is true of the Older Workers Benefit Protection Act?

a$.$ The act requires employers to disclose ages of only the terminated employees in layoff situations.

b$.$ The act requires employers to disclose the ages of both terminated and retained employees in layoff situations.

c$.$ The act requires employers to disclose ages of only the retained employees in layoff situations.

d$.$ The act requires employers to disclose the ethnicity and gender of both terminated and retained employees in layoff situations.