Which option would be used to enable user access to applications in the internet tier?

The correct choice for enabling user access to applications in the internet tier is the Public Gateway. A Public Gateway, often referred to as a public gateway or public access point, is essential for integrating cloud-hosted applications with the internet, allowing users outside the cloud to reach application resources. It serves as a conduit between the external network and the cloud infrastructure, facilitating requests and responses for web-based applications.

When users attempt to access applications hosted in the cloud, the Public Gateway enables this connectivity by providing a public IP address that can be accessed from anywhere on the internet. This capability is crucial for applications that are designed to be accessible to the general public or to external stakeholders, such as clients and customers.

The other choices play different roles in cloud architecture. A Security Group is typically used to define firewall rules and ensure that only authorized traffic can access specific resources within a cloud environment; it governs inbound and outbound traffic but does not itself facilitate access. A Firewall acts as a barrier to filter out harmful traffic and protect cloud resources from unauthorized access, and while it is important for security, it does not directly enable user access. A Load Balancer is responsible for distributing incoming traffic across multiple instances of an application to ensure optimal performance and availability, but it does not provide