Which of the following is true of socioemotional selectivity theory? Multiple Choice
a.It was proposed by Paul Baltes and his colleagues.
b.It emphasizes that the trajectory of motivation for knowledge-related goals declines in adolescence and early adulthood and then peaks during middle and late adulthood.
c.It challenges the stereotype that the majority of older adults are in emotional despair because of their social isolation.
d.It states that adults become less selective about their social networks as they grow older.

The Socioemotional selectivity theory was proposed and developed by Laura L. Carstensen, director of the Stanford Center on Longevity, the theory focuses on people's lifespan, in which people's perception of time is essential in the pursuit of purposes and goals, i.e. older adults turning selective towards their social networks, maximizing positive emotional experiences; therefore (c) it challenges the stereotype of older adults being in emotional dispair.