正解:B
Assigning ownership to each risk scenario is fundamental in risk management. Without designated owners, there is a lack of accountability, which can lead to risks not being adequately managed or mitigated. The absence of assigned owners means that no one is responsible for monitoring, reporting, or addressing the risk, increasing the likelihood of adverse outcomes.
Reference:ISACA CRISC Review Manual, 7th Edition, Chapter 2: IT Risk Assessment, Section: Risk Ownership.