Answer:
All of the above
Step-by-step explanation:
All of these are great examples of signs of mantal illness. If you can only choose one I would pick changes in thoughts and emotions. Sleeping after a long day of work could just be a sign of tiredness and being afraid of the dark could just be a fear. Crying could mean the person is overwhelmed. So your best bet would be to choose "Changes in thoughts and emotions" Hope this helps!