Suppose a, b, and c all make their first carrier sense, as part of an attempt to transmit, while a fourth station d is transmitting. draw a timeline showing one possible sequence of transmissions, attempts, collisions, and exponential backoff choice. your timeline should also meet following critetria: (i) initial transmission attempts should be in other a,b,c but successful transmission should be in the other c,b,a, and (ii)there should be at least four collisions.

Well, this code would box the whole body of an html document. by using the relative value for position, you are telling it to position relative to its normal position, which the top left corner is at (0,0). by using left: 50px, you are telling the box to set the left margin  edge to 50px and by using top: 50px, you are telling it to set the top margin edge to 50px. by doing this shifting, the top left corner of the box, which is at (0,0) would be positioned at (50,50)