Professor Appledorn Emphasizes That Whether People Flourish in Late Adulthood

Multiple Choice

Professor Appledorn emphasizes that whether people flourish in late adulthood depends on a continuous interaction among their inborn temperaments,their personal relationships,and their mental expectations regarding the aging process.The professor's viewpoint best illustrates a

A) longitudinal study.
B) developmental stage theory.
C) cross-sectional study.
D) biopsychosocial approach.