Self-expansion theory posits that individuals expand their sense of self through close relationships. Which option accurately reflects this concept?

• A. The degree to which partners support each other's sexual needs and desires.
• B. The quality of investments in time and effort within the relationship.
• C. The perceived availability of better relationship options outside the current relationship.
• D. Self-expansion theory posits that individuals expand their sense of self through close relationships.

Answer: (D)

Self-expansion through close relationships means you grow your sense of self by incorporating your partner’s qualities, goals, and experiences into your own identity. This process happens as new experiences and shared meanings widen what you consider part of “you,” leading to personal growth and a deeper bond.

The statement that self-expansion theory says people expand their sense of self through close relationships fits this idea exactly, because it names the process in plain terms and shows the relationship as the vehicle for growth. The other ideas describe aspects like sexual compatibility, time and effort invested, or the perceived attractiveness of outside options, none of which capture the self-expansion process itself.