Which network device acts as a multi-port bridge ?

of course the device is switch

That would be Switch, switches are referred to as  Multi-Port Bridges. 

Bridge was 4 or 8 port , then they create switch (12 port,24 port, 48 port) with additional hardware (ASIC) which accelerate forwarding so at the beginning it was multi port bridge then name is switch

Switch is the network device that acts as a multi port bridge

SWITCHES THEY HAVE SENSE TO MANAGE TRAFFIC CONTROLS AN TRANSFER DATA TO FINDING THE WAY USIND UNIC SID (MAC)

A network switch will act as a multi-port network bridge, it can also store hardware addresses  ( MAC address )

The correct answer is switch

Switches acts as a multi-port bridge.

SWITCH & ROUTER ARE USED AS MULTI PORT BRIDGE

the device which is called as multi port bridge is "SWITCH"

A multiport bridge connects multiple networks and operates transparently to decide on a packet-by-packet basis whether and where to forward traffic. Like the simple bridge, a multiport bridge typically uses store and forward operation. The multiport bridge function serves as the basis for network switches.