Ms Andries works as a roof supporter for an underground copper mine. The section that she's currently working in is notorious for falling of ground. Ms Andries was asked by her supervisor to support the recently blasted face so they can continue with the mining process as their section is lagging with their production targets. Ms Andries politely declined to work in that area as she felt that the area is not stable enough for her to do her job which caused the supervisor to file for a disciplinary action since she doesn't want to follow instructions. What is your viewpoint on this matter, do you think the supervisor's actions are justified or not? Support your answer using the MHSA. (10)