For questions 5-10, consider the following description: Consider a message with a length of 8x10 bits is to be sent from a source to a destination via a packet-switched network. The source and the destination are separated by two routers as shown below. Suppose each of the three links in this path is 2 Mbps. Ignore propagation, queueing and processing delays. Source Destination 5. (1.5 points) Consider sending the message without breaking it into smaller packets. How long does it take to move the message from the source to the first router? a. 2 sec. b. 4 sec. c. 5 sec. d. 12 sec. e. None of the above 6. (1.5 points) Keeping in mind that each router uses a store-and-forward packet switching, what is the total time to move the message from source to destination? a. 2 sec. b. 4 sec. C. 10 sec. d. 12 sec. e. None of the above. 7. (1.5 points) Now suppose the packet is divided into 800 packets with each packet being 10000 bits long. How long does it take to move the first packet to the first router? a. 2 b. 4 sec. c. 5 sec. d. 10 sec. e. None of the above