A Minimum Cost Network Flow Model (MCNFM)has the Following Advantage

A minimum cost network flow model (MCNFM) has the following advantage relative to the special case of a simple transportation model:

A) a MCNFM does not require capacity restrictions on the arcs of the network
B) the flows in a general MCNFM don't all necessarily have to be from supply locations to demand locations
C) a MCNFM is generally easier to formulate and solve
D) All of these options