please help. I'm not sure if this is right or not. I will upvote!
For the given directed graph,which of the following sequences(ordered left to right) is a topological sort?
O All of these are valid topological sorts
O0,2,1,4,3,5
0,2,1,3,4,5
0,2,4,1,3,5
O None of these is a valid topological sort