Name a popular Container Orchestration program.

Kubernetes is widely recognized as a leading container orchestration platform that automates the deployment, scaling, and management of containerized applications. It is designed to manage clusters of hosts running containers, which allows for the efficient distribution of container workloads across multiple nodes, enhancing both scalability and reliability.

Kubernetes offers features such as automated load balancing, self-healing capabilities (such as restarting failed containers), and seamless scaling of applications up or down based on demand. This makes it an essential tool for managing microservices and cloud-native applications.

The other options do not serve the same purpose as Kubernetes. Apache Tomcat is primarily a web server and servlet container for running Java applications. Docker Compose is a tool for defining and running multi-container Docker applications, but it lacks the advanced orchestration capabilities that Kubernetes provides. VirtualBox is a virtualization software for running multiple operating systems on a single machine but does not focus on container orchestration. Thus, Kubernetes stands out as the container orchestration program among the given choices.