Explanation
We should do all of these except for requiring multifactor authentication, which is pointless in key management.

Explanation
Reversibility is the cloud concept involving the ability for a cloud customer to remove all of its data and IT assets from a cloud provider. Also, processes and agreements would be in place with the cloud provider that ensure all removals have been completed fully within the agreed upon timeframe. Portability refers to the ability to easily move between different cloud providers and not be locked into a specific one. Removability and extraction are both provided as terms similar to reversibility, but neither is the official term or concept.

Regulated PII data carries legal and jurisdictional requirements, along with official penalties for its misuse or disclosure, which can be either civil or criminal in nature. Legal and protected are similar terms, but neither is the correct answer in this case. Contractual requirements can carry financial or contractual impacts for the improper use or disclosure of PII data, but not legal or criminal penalties that are officially enforced.

Explanation
The official categories of cloud risk ratings are Minimal, Low, Moderate, High, and Critical.