A data administrator is configuring authentication for a SaaS application and would like to reduce the number of credentials employees need to maintain. The company prefers to use domain credentials to access new SaaS applications. Which of the following methods would allow this functionality?

LEAP, or Lightweight EAP, is a Cisco proprietary authentication method primarily used in wireless networks. It focuses on securing wireless connections rather than providing a centralized authentication solution for multiple applications. As such, it does not address the concern of reducing the number of credentials employees need to manage for SaaS applications.

Multi-Factor Authentication (MFA) enhances security by requiring users to provide two or more verification factors to gain access to applications. While it adds a layer of security, it does not directly reduce the number of credentials needed; in fact, it could potentially increase the complexity of user authentication.

Protected Extensible Authentication Protocol (PEAP) is an authentication protocol used primarily in wireless networks to secure user credentials during transmission. While it protects the authentication process, it does not simplify the number of credentials that users must maintain across various applications.