According to Research Described in the Chapter, Which of the Following

According to research described in the chapter, which of the following is not a reason that gratitude helps to reduce stress?

A) Grateful people are more alert and attentive.
B) People high in gratitude have better health outcomes, including better sleep patterns and consistent heart rhythms.
C) People who are grateful amass more power in the organization because others like them; they are thus able to control their work environment.
D) People show improved cognitive functioning when they are feeling grateful.