Answer:
Hi your question is poorly written attached below is the complete question
answer : TRUE ( a )
Explanation:
The statement about a flow network is true because when there is a vertex in the flow network that inhibits the source from reaching the sink, the vertex can be successfully removed without altering the maximum flow in the flow network.
as given in the question ; if f(u,v) = f(v,u) =0 we can remove the vertex.