What Can We Conclude About the Self-Reference Effect

What can we conclude about the self-reference effect?

A) Although early research found evidence of this effect, more recent experiments have been unable to demonstrate it.
B) Although the self-reference effect operates with children, it does not apply to adolescents or adults.
C) The research shows that people are more likely to recall words that apply to themselves compared with words that do not apply.
D) The self-reference effect is one exception to the general tendency for deep levels of processing to be particularly effective in enhancing memory.