Answer: Option (a) is the correct answer.
Step-by-step explanation:
When we perform in a laboratory then it is necessary to follow the instructions of the teacher and safety measures thoroughly so that any accident will not lead to any type of serious injury.
But if sometimes the teacher in not around you while performing the experiment then the basic safety measure to be followed is to wear gloves, goggles, and protective clothing.
Therefore, we can conclude that the most important safety rule to remember during lab activities is wear gloves, goggles, and protective clothing.