As you can see in the below screenshot (from the OCI Console), while implementing OCI-Azure Interconnect you need to select Connection type: FastConnect partner and select Microsoft Azure ExpressRoute as the Partner.
Hence, "Select FastConnect Direct as the connection type" is NOT VALID and hence the correct answer.

To delete the interconnect, perform these steps in the order given. Failure to do so results in a failed state ExpressRoute circuit.
1. Delete the ExpressRoute connection. Delete the connection by selecting the Delete icon on the page for your connection.
2. Delete the Oracle FastConnect circuit from the Oracle Cloud Console.
3. Once the Oracle FastConnect circuit has been deleted, you can delete the Azure Ex-pressRoute circuit.
Hence "You need to first delete the Oracle FastConnect circuit for the ExpressRoute circuit to be decommissioned, and then you can delete the ExpressRoute virtual circuit." is the CORRECT AN-SWER.

By using Oracle FastConnect and Azure ExpressRoute, customers can seamlessly build a private interconnection between their OCI and Microsoft Azure environments. The Interconnect also ena-bles joint customers to take advantage of a unified identity and access management platform that leads to cost savings. Cloud engineers can set up SSO between Microsoft Azure and OCI for their Oracle applications, such as PeopleSoft, JD Edwards EnterpriseOne, and E-Business Suite. Having a federated SSO makes the integration seamless and allows users to authenticate only once to access multiple applications, without signing in separately to access each application.

The keyword here is multiple providers. Multicloud is a cloud computing strategy that uses the best services from more than one cloud provider to deploy a solution.
The use of multiple cloud services from a single provider for redundancy and high availability is INCORRECT as it talks about single provider.
The deployment of a single cloud service across multiple regions and data centers for better perfor-mance is also INCORRECT as there is no mention of multiple cloud service providers. Rather it talks about single cloud service across multiple regions.
The use of multiple cloud services from a single provider for redundancy and high availability is al-so INCORRECT as it also talks about single provider.
Hence the correct answer is The use of cloud services from multiple providers to leverage the best features and services of each.

In the question, frontend is in Azure and backend is in OCI. And the keywords are SECURE and LOW LATENCY data transfer.
Use public internet connections to transfer data between Azure and OCI, encrypting the data in transit - INCORRECT as this option won't provide LOW LATENCY data transfer (as it is us-ing public internet).
Leverage a VPN Gateway to create an encrypted tunnel between Azure and OCI for secure data transfer - INCORRECT as Site-to-Site VPN Connection won't provide LOW LATENCY data transfer as the connection traverses through public internet.
Implement a hybrid cloud approach by integrating on-premises infrastructure with both Azure and OCI - INCORRECT as there is no mention of on-premises environment in the question. This option is irrelevant here.
Establish a dedicated, private connection between Azure and OCI using Azure ExpressRoute and Oracle FastConnect - CORRECT as it provides a direct Interconnect between OCI and Microsoft Azure which in turn provides <2ms latency for superior multicloud network performance.