What Is the Difference Between a Brief,moderate Increase in Cortisol

What is the difference between a brief,moderate increase in cortisol and prolonged high levels?​

A) A moderate level leads to depression. Prolonged high levels relieve depression.
B) ​A moderate level enhances memory. Prolonged high levels impair memory.
C) ​A moderate level decreases appetite. Prolonged high levels increase appetite.
D) ​A moderate level increases serotonin release. Prolonged high levels increase dopamine.