A healthcare mobile application leverages proprietary machine learning algorithms for early diagnosis based on patient health metrics. Ensuring the protection of this sensitive data is crucial. The development team aims to migrate to a scalable user management system that includes log-in and sign-up functionalities, as well as support for Multi-Factor Authentication (MFA).

Identify the two most suitable options from the list below that would require the least amount of development effort to accomplish this transition. (Select two)