Which of the following is essential for the creation of a Managed Service Account (MSA)?

The essential requirement for the creation of a Managed Service Account (MSA) is that it must be installed on a target computer that already has Active Directory installed. MSAs are designed to provide automatic password management and simplified service principal name (SPN) management for services running on Windows. The integration with Active Directory is crucial as it allows the MSA to leverage the directory's user accounts and the security mechanisms in place.

When an MSA is created, it is registered within Active Directory, which then manages the necessary credentials for that account. The account needs to be tied to a specific computer that is part of the Active Directory domain, enabling the designated services to authenticate securely and operate with the appropriate privileges while benefiting from automatic password rotation. This requirement ensures that the MSA functions correctly within the ecosystem of Active Directory, ultimately enhancing security and efficiency in service management.

Other options do not align with the requirements for setting up an MSA, as they either refer to setups that do not integrate with Active Directory or suggest alternatives that do not provide the functionality of an MSA.