Which statement about AWS Organizations is true? Organizations uses service control policies $($SCPs$)$ to grant permissions for member accounts within an organization. Organizations replaces AWS Identity and Access Management $($IAM$)$ by overriding the granular control that IAM provides to the account level. With Organizations, you can attach policies to each OU for fine$-$grained policy creation and application. You can nest organizational units $($OUs$)$ within other OUs up to a depth of seven levels.