What would be the first thing you would do if your clothes caught fire while working in a laboratory?

a - call out to your teacher
b - drop and roll on the floor to extinguish the fire
c - run towards a source of water to extinguish the fire

B - Drop and roll on the floor to extinguish the fire

Explanation:

A fire can be a natural hazard which can erupt in a laboratory due to chemical reaction or due to the uncontrolled burning of a fuel. Proper safety precautions should be taken to handle incidences of fire in a laboratory.

Among the options given,  B - Drop and roll on the floor to extinguish the fire is the correct option because if the person drops and rolls over the floor the fire extinguishes with pressure of the body applied on the floor.

Call out to your teacher will consume the time this will lead to more damage cause to the skin or clothes.

Run towards a source of water to extinguish the fire, as we know that water will provide oxygen to fire, because of this the fire will erupt more severly when receives the oxygen.