Individuals High in Optimism Tend to Adjust Better to Life

Individuals high in optimism tend to adjust better to life challenges, have better moods, and report lower stress compared to people low in optimism. What is one ""dark side"" of optimism, according to Sieber et al. (1992) ?

A) Optimism can set people up for disappointment when their high expectations for the future are not met
B) When faced with a difficult situation, optimistic people keep persevering while pessimistic people give up
C) Optimism is associated with reduced risk taking
D) People who identify as optimistic often actually score as pessimists on implicit measures