What is the correct option

5 2.5 points possible Let {G=(V,E), s, t in V, c(e) for e in E} be a network. Consider the flow f = 0 for all edges in E. The residual network corresponding to this flow is equal to the original graph G. has more edges than the original graph G. has a unique strongly connected component. has at least one edge e with capacity different from c(e).