Which one of these events is most likely to produce the most amount of stress for the average person? a) Losing your job after a planned closing of the business
b) Getting laid off suddenly
c) Quitting your job to go back to school
d) Keeping your job while watching other get laid off​

I think the answer would be b) Getting laid off suddenly.

Explanation:

If someone loses their job after a planned closing of the business, they would already have known that they are going to lose their job and it would give them time to prepare for that. Quitting a job to go back to school is a choice so there's no reason to he stressed about it, watching other people get laid off shouldn't be stressful, B makes the most sense to me.

i think the life is invaluable.

you can also say immeasurable.