When migrating sensitive security operations to Microsoft Azure, it's essential to address multiple security considerations simultaneously. Proper access controls with Azure Active Directory, including multi-factor authentication, ensure only authorized access. Implementing encryption for data at rest and in transit protects data integrity and confidentiality, with Azure Key Vault providing secure key management. Regularly assessing security configurations with Azure Security Center helps maintain compliance and adapt to new threats. While cost is a consideration, security cannot be compromised, making 'All of the above' the most comprehensive and correct approach.