Please provide step by step explanation as I am vey unsure with the topic

(c) Consider a Token Bucket filled at a rate r=10000 bytes/sec. The Tolsen Bucket has a capacity of 5000 bytes. Assume that the bucket is full when the first packet arrives. The following packets arrive successively: 4 COMM3005 DT021/3 - first packet at t=0 sec, packet of size 4000 bytes; - second packet at t=0.2sec, packet of size 2500 bytes; - third packet at t=0.5sec, packet of size 3400 bytes; - fourth packet at 0.75sec, packet of size 2800 bytes; - fifth packet at 1 sec. packet of size 5000 bytes. Assume the Token Bucket drops non-compliant packets. Establish which packets will be forwarded. [10 Marks]