One of the core principles of business analysis is the continuous need for negotiation and consensus building, particularly when dealing with conflicting stakeholder perspectives and requirements. Business analysis actively seeks to negotiate and resolve these conflicts rather than avoiding them, which is a key part of establishing a shared understanding of the problem and the proposed solution. The other options contradict established BA principles: the principle is to find root causes, not symptoms (leading to superficial and ineffective solutions); to investigate and evaluate multiple options, not just solutions (ensuring the optimal change is selected); and to focus on business improvement as the driver for any necessary IT system change, not the other way around. The BA role necessitates working across competing interests to reach a successful outcome, making negotiation a fundamental principle.

(Reference: BCS Business Analysis Practice -- Principles of Business Analysis / Analysing and Managing Stakeholders)