Options available are:
a. become increasingly difficult to measure
b. increase
c. remain the same
d. decline
Answer:
D. Decline
Step-by-step explanation:
According to Ursula M. Staudinger, who is popular through her research works on developmental psychology, which focuses on the effects of both nature and nurture on human development and changes over time.
In one of her works, she argued that openness to experience is highly correlated with ego development, wisdom, and emotional complexity and that all of these characteristics DECLINE in people as they age.