According to the Continuity Principle of Adult Development and Aging

According to the continuity principle of adult development and aging, the experiences you have as a young adult will play what role in your development?

A) Young people are able to make up for any damage they do their bodies when they get older.
B) The friends people have in their college years will most likely be the same ones they have later in life.
C) People retain their identities about as they get older, even though their appearance changes.
D) Older adults would prefer to be treated as "old" rather than as the people they were when younger.