Which option describes a characteristic of the public cloud model?

The public cloud model is characterized by a shared multi-tenant environment where computing resources (servers, storage, networking) are pooled and shared among multiple customers. This allows for economies of scale and flexible resource allocation. "Exclusively owned infrastructure" describes a private cloud, where resources are dedicated to a single organization. "Hosted in customer data centers" refers to an on-premises or private cloud deployment, not a public cloud. "Manages only networking services" is too narrow; public cloud providers offer a broad range of services, including compute, storage, databases, and more, beyond just networking.