Which of the following situations provides the BEST justification for considering the adoption of a qualitative risk assessment method?

While complex calculations can be a reason to prefer qualitative, the underlying issue is often the data input for those calculations, which option B directly addresses as a cost barrier.

Qualitative risk assessment methods are valuable when accurate numerical data, such as financial impacts or probability statistics, is unavailable or prohibitively expensive to collect. In such cases, qualitative methods rely on expert judgment, experience, and subjective scales to prioritize risks, providing a practical and cost-effective approach to understanding and managing risk without the need for extensive quantitative data.

The number of information assets in the risk register doesn't inherently dictate whether qualitative or quantitative methods are more appropriate; either can be applied to varying numbers of assets.

A higher risk tolerance level influences risk response strategies but does not justify the choice of assessment methodology itself.