Answer: AWS ISO certifications

AWS Artifact is a service that provides access to AWS security and compliance documents. The correct answer is B, 'AWS ISO certifications', as it is the documentation type specifically mentioned in the user comments and the AWS documentation. ISO certifications are international standards that define best practices for information security management systems, and AWS Artifact allows customers to access AWS's ISO certifications, such as ISO 27001. The other options, such as Amazon EC2 terms and conditions, a history of a company's AWS spending, and a list of previous-generation Amazon EC2 instance types, are not the types of documentation provided by AWS Artifact.

Author: LeetQuiz Editorial Team