Which device is similar to a hub but can isolate groups of devices on a network?

Bridge

Firewall

Router

Switch

Router

Explanation:

A hub is so similar like a switch, but a switch is smarter than the hub because can be to know what port is connected, but is this particular question we have a router like options, this is the smartest of the three options because we can segregate and isolate groups of the device on a network, this is the most complex to use of the three option because we have to make some settings like the DHCP.