Which of the Following Is True of Activity Theory

Which of the following is true of activity theory?

A) It suggests that by examining not only the positive aspects of one's life,but also what one has repented doing (or not doing) ,a more accurate vision of the complexity of one's life and possibly increased life satisfaction will be attained.
B) It states that older adults become more selective about their social networks and because they place a high value on emotional satisfaction,older adults spend more time with familiar individuals with whom they have had rewarding relationships.
C) It involves identifying and reflecting on not only the positive aspects of one's life but also on regrets as part of developing mature levels of wisdom and self-understanding.
D) It suggests that many individuals will achieve greater life satisfaction if they continue their middle-adulthood roles into late adulthood and if these roles are stripped from them,it is important for them to find substitute roles that keep them dynamic and involved.