Which of the following components can be used to consolidate and forward inbound internet traffic...

A transit gateway is a network transit hub that can be used to interconnect virtual private clouds (VPCs) and on-premises networks. A transit gateway can consolidate and forward inbound internet traffic to multiple cloud environments through a single firewall by offering the following features:

Attachments that can connect one or more VPCs, a Connect SD-WAN/third-party network appliance, an AWS Direct Connect gateway, a peering connection with another transit gateway, or a VPN connection to a transit gateway.

Transit gateway route table that can include dynamic and static routes that decide the next hop based on the destination IP address of the packet.

Associations and route propagation that can link each attachment with a route table and dynamically propagate routes to or from a transit gateway route table. References: What is a transit gateway? - Amazon VPC; Network Gateway – AWS Transit Gateway – Amazon Web Services; Configure VPN gateway transit for virtual network peering; AWS — Difference between VPC Peering and Transit Gateway