VMware Aria Operations for Applications is a SaaS solution that provides observability for modern applications across multiple clouds and platforms. It collects and analyzes traces, metrics, and logs from various sources, including Tanzu Kubernetes Grid clusters managed by Tanzu Mission Control. To enable the integration between VMware Aria Operations for Applications and Tanzu Mission Control, an administrator can use the integrations tab in Tanzu Mission Control UI and follow the steps to configure the connection.

The other options are incorrect because:

VMware Aria Operations for Applications is not enabled by default in Tanzu Mission Control. An administrator has to explicitly enable the integration and provide the required credentials and settings.

An administrator cannot login to VMware Aria Operations for Applications and enable Tanzu Mission Control integration from the administration menu. The integration has to be initiated from Tanzu Mission Control UI.

An administrator cannot download and install the VMware Aria Operations Observations agent from Tanzu CLI. The Observations agent is automatically installed on the clusters managed by Tanzu Mission Control once the integration is enabled.

References: Configure Integration with Tanzu Mission Control, Introducing the Tanzu Mission Control Integration for VMware Aria Automation