A drug-free workplace policy says that it conducts pre-employment drug testing on all new hires, it uses a zero-tolerance approach for dealing with policy violations, and it mandates participation for all employees. How would you evaluate the effectiveness of this policy? To be more effective, participation should be voluntary. The policy as written is effective. To be more effective, the terms of the written policy should be administered on a case-by-case basis. The policy is completely ineffective