short term stress is could be like babysitting an annoying kid for 1 hour, you will be annoyed by said kid and when your hour is up and your golden
Long term stress is like babysitting the same kid but for every day for 3 hours an day 24/7 that stress builds up and you kill the kid
One must consider physical, mental, and social factorts
I would say C, schizophrenia,
because schizophrenia is "a mental disorder that in many ways centers around not recognizing what is part of reality – namely, having psychotic breakdowns." It is not related to anxiety, as anxiety is classified as "neurotic" while schizophrenia is classified as "psychotic".
By checking your pulse and seeing if you heart rate is in the target heart rate zone.