(c) A packet size of 512 bytes is sent from Host A to Host B, which are 100 km apart, on each transmission. The link bandwidth between Host A and Host B is capped at maximum of 1 Mbps. (Assume propagation speed of 2.8 x 108 m/s) (1) Determine how many packets are required to transmit a file size of the 8 KB from Host A to Host B and also calculate the miminum time required. [4 marks] (ii) As in c (1), calculate the delay if the bandwidth is now upgraded to 4 Mbps. [2 marks] (ii) As in c (1), calculate the delay if the file size is now increased to 16 KB. [2 marks] (iv) Based on the results from c (i), (ii) and (iii), discuss whether the delay mainly depends on the packet size, file size or tranmission rate. [2 marks]