An Organization Is in the Process of Evaluating Service Providers

An organization is in the process of evaluating service providers for an upcoming migration to cloud-based services for the organization's ERP system. As part of the requirements defined by the project team, regulatory requirements specify segmentation and isolation of the organization's data. Which of the following should the vendor management team identify as a requirement during the procurement process?

A) Public cloud services with single-tenancy IaaS architectures
B) Private cloud services with single-tenancy PaaS services
C) Private cloud services with multitenancy in place for private SaaS environments
D) Public cloud services with private SaaS environments supported by private IaaS backbones