An Employer Plans to Monitor a Client's Exposure to Chemicals

An employer plans to monitor a client's exposure to chemicals in the workplace.The client is upset to learn that the monitoring includes genetic testing.The nurse tells the client that this practice is legal under which circumstances,if any?

A) The practice is not legal.
B) The client must have been informed.
C) The client gave written permission for this testing.
D) The monitoring is required by federal law.
E) The monitoring is required by state law.