You support the backend of a mobile phone game that runs on a Google Kubernetes Engine (GKE) cluster. The application is serving HTTP requests from users. You need to implement a solution that will reduce the network cost. What should you do? 

Answer options:

A. Configure the VPC as a Shared VPC Host project.
B. Configure your network services on the Standard Tier.
C. Configure your Kubernetes cluster as a Private Cluster.
D. Configure a Google Cloud HTTP Load Balancer as Ingress.

C

Reference: https://cloud.google.com/solutions/prep-kubernetes-engine-for-prod