You deploy a mobile messaging solution by using front-end and back-end servers that run Microsoft Exchange Server 2003 Service Pack 2. Company policy requires that all Microsoft Windows Mobilebased devices must support Microsoft Exchange ActiveSync communication that is Federal Information Processing Standard compliant. You need to deploy the Windows Mobilebased devices. What should you use？（）
- AMicrosoft Windows Mobile 5.0
- BMicrosoft Windows Mobile 2003 for Pocket PC
- CMicrosoft Windows Mobile 2003 Second Edition
- DMicrosoft Windows Mobile 5.0 with Microsoft Messaging and Security Feature Pack