Refer to the Scenario Below to Answer the Following Questions

Refer to the scenario below to answer the following questions
The Environmental Study (Scenario)
You have just been challenged by your supervisor to study and report your findings on approaches that organizations use when dealing with the environment and when pursuing the goal of going green. Your boss tells you to study the four major approaches, differentiate among them, and report to him in a week.
-How can managers identify the ethically questionable applicants even before they became part of the workforce?

A) by hiring friends and family members who apply
B) by asking candidates to prove that they can complete more work in less time
C) by favouring candidates who come with a reference from existing employees
D) by asking the candidates to go through interviews, tests, and background checks
E) by hiring individuals with the same ethnic background