Which Statement Is True About "Neoclassical" Economists

Which statement is true about "Neoclassical" economists?

A) Neoclassical economists assume that, in a competitive market, the "taste" of discrimination cannot be indulged because it would be too costly for employers.
B) Neoclassical economists believe that if employers continue to discriminate against special groups, their productivity will be reduced, ultimately resulting in reduced income for employers.
C) Neoclassical economists assume that employers would lose their competitive advantage if they do not utilize the wide range of skills and talents offered by women, members of minority groups, older adults, sexual minorities, and people with disabilities.
D) All of the above