Which of the Following Is True of Socioemotional Selectivity Theory

Which of the following is true of socioemotional selectivity theory?

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.