Answer: Option 4Concept: UnicastBroadcastMulticastIn unicast, the data is delivered from one point to anotherIn Broadcast, data is delivered from one point to all pointsIn multicast, data is delivered from one to one or more points.It has only one sender and one receiver.It has only one sender but different receivers.It represents a group of devices in LAN meant for sending to specific hosts.If a message is to be delivered to different devices then multiple unicast is required.In this, the sender sends a specific broadcast address and all those devices that have the broadcast address can process it.Multicast uses IGMP to identify the group to which the message is to be sent.It is one to one technique.It is a one-to-many technique.It is one-to-manyExample: Browsing a websiteBroadcasting audio messageARP request message.Multicast address:Multicast address are those addresses by using these we can send information to a group of computersThe Multicast Mac address range is 01-00-5E-00-00-00 to 01-00-5E-7F-FF-FF.Explanation: Since 01:00:5E:FF:FF:FF does not fall in the range of multicast addresses which is given above.Hence Option D is the correct answer.