What action should an administrator take to deploy infrastructure in a new region in OCI?

To deploy infrastructure in a new region within Oracle Cloud Infrastructure (OCI), the correct course of action is to subscribe to the desired region. Subscribing to a region is necessary because it grants the user access to the resources and services available in that specific region. Each region operates independently, and you must opt-in to utilize its services.

Once a subscription is established, the administrator can navigate to that region and initiate the creation of resources. This process ensures that the administrator is properly aligned with the regional settings and offerings, effectively enabling resource management and deployment.

Other options, such as filing a service request for access, would likely not be necessary in many scenarios, as regional subscriptions are typically straightforward processes handled directly through the OCI console. Using API endpoints to create resources might not effectively establish access, as it presupposes that the administrative user has already subscribed to the region. In the context of this question, the focus is on the initial step of enabling access to resources in a new region, which is accomplished through subscription.