As a means of reducing racial stereotyping at the workplace, Adam organized a series of mandatory diversity trainings for his employees. However, a year later he finds that his employees still show...

As a means of reducing racial stereotyping at the workplace, Adam organized a series of mandatory diversity trainings for his employees. However, a year later he finds that his employees still show hostility toward their colleagues belonging to other races. Which of the following options best answers why Adam wasn’t able to use social psychology to improve his employees’ behavior?

a. He didn’t employ the experimental method to understand hostility at his workplace.

b. He used basic research instead of applied research to solve a social problem.

c. He didn’t test the intervention experimentally before implementing it.

 d. He didn’t conduct a survey asking for his employees’ opinion on whether the initiative would be successful.