Answer:d.all of these
Explanation:signs of exhaustion involve physical signs, emotional signs and behavioural signs.
When someone is exhausted it could be caused by the job or by other factors but they will be affected in all these three way for example they may start getting ill because the body can't copy anymore due to exhaustion, they may start neglecting things that they should be doing for themselves due to the lack of energy to do those things and last they may start lashing out the anger .