Answer: Option 4Concept: LAN Technologies: In LAN technology, There are several technologies such as Ethernet, Token Ring, Token Bus, FDDI ( Fiber Distributed Data Interface ), and ATM (Asynchronous Transfer Mode). Some of these technologies survived for a while, but Ethernet is by far the dominant technology.1. Ethernet: The original Ethernet was created in 1976 at Xerox's Palo Alto Research Center (PARC).Since then It has gone through four generations: a. Standard Ethernet (10 Mbps)b. Fast Ethernet (100 Mbps)c. Gigabit Ethernet (1 Gbps)d. Ten-Gigabit Ethernet (10 Gbps)Explanation: LAN works on physical and data link layers.The physical layer defines the means of transmitting raw bits over a physical data link connecting network nodes.The data link layer is the protocol layer in a program that handles the moving of data into and out of a physical link in a network.