Answer :
Answer: B) Guidelines for safe laboratory practices and policies
Explanation: Before carrying out any experiment in the laboratory , students must be aware of the environment and ambience of the same.
Thus proper manual of guidelines and safety must be provided to the students so that any hazardous deed can be overcome.
Proper guidelines will help them to learn more about the equipment they are about to use in the laboratory .
The guidelines for safe laboratory practices and policies will help them to acknowledge and deal with any kind of unfavorable conditions if occur.