Openness to experience increases between the ages of __________ and declines between the ages of __________.

A) 4 and 8; 60 and 70
B) 12 and 16; 40 and 50
C) 16 and 20; 35 and 65
D) 18 and 22; 60 and 70

Openness to experience typically increases during late adolescence and early adulthood (ages 18 to 22) as individuals explore their identities and the world around them. It tends to decline later in life, from around the ages of 60 to 70, as people become more settled in their ways and perspectives.