Fill the blanks: ____ helps us track AWS API calls and transitions, ____ helps to understand what resources we have now, and ____ allows auditing credentials and logins.

made by using the AWS Management Console, AWS SDKs, command line tools, and higher-level AWS services. http://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-user-guide.html

A.
AWS Config, CloudTrail, IAM Credential Reports

B.
CloudTrail, IAM Credential Reports, AWS Config

C.
CloudTrail, AWS Config, IAM Credential Reports

D.
AWS Config, IAM Credential Reports, CloudTrail

Explanation:
Explanation/Reference:
You can use AWS CloudTrail to get a history of AWS API calls and related events for your account. This includes calls