An organization has 30 VPCs: three AWS Regions each host 10 VPCs. Each Region’s VPCs are attached to that Region’s transit gateway, and the transit gateways are peered across Regions. The organization wants to use AWS Direct Connect from its on-premises site to reach only four VPCs across the three Regions. The company has already provisioned four Direct Connect connections at two Direct Connect locations. Which set of steps will satisfy the requirement most cost-effectively? (Choose three.)

The organization needs to connect specific VPCs to Direct Connect, not entire transit gateways. Creating four virtual private gateways (VGWs) and attaching each to one of the four target VPCs allows granular control. A Direct Connect gateway (DXGW) is essential for centralizing connections from Direct Connect to multiple VGWs across regions, and associating the four VGWs with the DXGW enables this. Finally, using private virtual interfaces (private VIFs) on the Direct Connect connections and pointing them to the DXGW is the correct and most cost-effective way to establish connectivity, as private VIFs are designed for connecting to VPCs via a DXGW. Incorrect options: Creating transit VIFs and associating them with the DXGW or VGWs is incorrect because transit VIFs are used for connecting to transit gateways, not directly to VGWs. Creating an association between the DXGW and transit gateways would allow access to all VPCs connected to those transit gateways, which violates the requirement to reach only four specific VPCs.