Final answer:
The desire to have a significant other close when upset is indicative of normal proximity-seeking behavior and a sign of secure attachment, according to attachment theory. This behavior is rooted in the secure base concept from childhood and reflects a healthy attachment style in adults.
Step-by-step explanation:
When people are upset and want their significant other close, according to attachment theory, this response indicates normal proximity-seeking behavior. Attachment theory was developed by John Bowlby and emphasizes the importance of a secure base in child development, which later translates into adult relationships as well.
The presence of a significant other provides a sense of safety and reassurance, similar to a child's reliance on a caregiver. Among the attachment styles, secure attachment is characterized by seeking comfort from attachment figures during times of stress, viewing them as a secure base.
Therefore, the desire of individuals to have their significant others close when they are upset does not reflect an emotional problem, abnormal fear, or insecure attachment; rather, it is a continuation of the secure attachment behavior established in childhood. The secure attachment style is the most common and healthiest, where individuals prefer their partners over strangers in times of need and find comfort in their presence after stressful events.
Therefore answer is A) normal proximity-seeking behavior.