A developer has asked a network engineer for a small network segment of five computers connected via a Layer 1 device, configured in a star topology, and segregated from the corporate network. Which of the following would BEST fulfill the developer`s request? 

Answer options:

A. Connect the five PCs to a hub that is not connected to the corporate network.
B. Connect the five PCs to a switching router and assign the PCs to a separate VLAN.
C. Connect the five PCs to a hardware firewall that is connected to the router.
D. Connect the five PCs to a switch and configure the ports with implicit deny ACLs for outbound traffic.

A