Your organization stores highly sensitive data on-premises that cannot (Digital Leader)

Correct answer: C) Order a Partner Interconnect connection with your network provider.
Given the requirement to process highly sensitive data both on-premises and in the cloud without sending the data over the public internet, the appropriate solution is to establish a secure and private connection between your on-premises environment and Google Cloud. Partner Interconnect: Partner Interconnect provides a dedicated and private connection between your on-premises data center and Google Cloud.
This connection is facilitated through a network service provider, ensuring a secure and private channel for data transfer.
Avoiding Public Internet: Unlike options such as Cloud VPN or Private Google Access, Partner Interconnect doesn't rely on the public internet. It establishes a dedicated link, reducing the risk associated with sending sensitive data over the public internet.
Highly Sensitive Data: Since the organization is dealing with highly sensitive data, having a dedicated, private connection with predictable performance and reliability is crucial.

While options like Cloud VPN (option B) and Private Google Access (option D) are useful in different scenarios, neither provides the dedicated and private connection needed to ensure the security of highly sensitive data when processing it both on-premises and in the cloud. Therefore, Partner Interconnect is the most suitable choice for this specific requirement.