40. Sarah has been asked to explain the "right-to-know" law to her coworkers in the forensics lab. How will she MOST accurately explain this law?
All lab workers must know how to operate a handgun.
Scientists are informed of any potentially dangerous materials.
Forensic scientists are told when criminals are in the building.
No scientists have to testify in a criminal case if they choose not to.

Pretty sure its B. Sorry if I'm wrong.

Explanation:

This is the definition on Wikipedia.

"Right to know", in the context of United States workplace and community environmental law, is the legal principle that the individual has the right to know the chemicals to which they may be exposed in their daily living.

answer:

"it is often classified as either a schedule ii or schedule iii substance, making it illegal to possess for personal use or distribution. crystal meth can be ingested, injected, or smoked. it is a highly addictive substance and can lead to many different personal, medical, and legal problems."

this is the link

hope your friend dont get in trouble