A company has a large Microsoft SharePoint deployment on-premises that requires Microsoft Windows shared file storage. The company wants to migrate this workload to AWS. The storage solution must be highly available and integrate with Active Directory for access control. Which solution satisfies these requirements?

Amazon FSx for Windows File Server provides fully managed, highly available Windows native shared file storage that supports the Server Message Block (SMB) protocol, which SharePoint requires. It seamlessly integrates with Active Directory for authentication and access control, directly fulfilling the company's requirements for shared file storage and security. Amazon EFS is a Linux-native NFS file system and does not support SMB or direct Active Directory integration for Windows workloads. AWS Storage Gateway File Gateway provides on-premises access to cloud storage but isn't a native cloud-based shared file system for Windows. Mounting an S3 bucket as a volume via Windows Server is not a native, highly available, or performant solution for shared file storage required by SharePoint.