Individuals with borderline personality disorder often struggle with which of the following aspects?

Individuals with borderline personality disorder commonly experience significant difficulties in interpersonal relationships. This disorder is characterized by intense emotions, fear of abandonment, and unstable relationships, leading to tumultuous interactions with others. People with borderline personality disorder may idealize someone one moment and then devalue them the next, which creates a pattern of unstable relationships. These emotional swings can hinder their ability to maintain consistent and healthy connections, contributing to feelings of emptiness and distress.

The other options, while they may have some relevance in different contexts, do not specifically encapsulate the hallmark difficulties faced by individuals with borderline personality disorder. Long-term planning can be affected but is not a defining characteristic of the disorder. Intellectual capability is typically within normal ranges for individuals with this condition, and creative expression may vary individually but is not a central focus of the disorder's impact on personal functioning. Thus, the correct answer highlights the core challenge related to interactions and relationships faced by these individuals.