In an Examination of Neurological Factors and One's Ability to Be

In an examination of neurological factors and one's ability to be optimistic, it has been found that individuals high in dispositional optimism also appear to have

A) stronger melatonin responses when waking up in the morning.
B) stronger cortisol response when waking up in the morning.
C) weaker cortisol response when waking up in the morning.
D) weaker HGH levels when waking up in the morning.