According to systemic counselors,in relationships,____________ must constantly be negotiated in order for relationships to weather the test of time and to adjust to each person's evolving need.

A) hierarchies
B) boundaries
C) attachment
D) lifecycle stages

Systemic counselors emphasize the importance of negotiating boundaries (B) in relationships in order to accommodate each person's evolving needs and maintain a healthy long-term relationship. Hierarchies (A) may exist in some relationships, but they are not constantly negotiated. Attachment (C) is essential for human development, but it is not something that can be negotiated. Lifecycle stages (D) may require adjustments in relationships, but they do not need constant negotiation.