You have been given supply and demand data in tons, as well as a network diagram. The transport costs are listed in ($)/() per ton. Based on this information, what is the best option for meeting the demand?

A) Option 1: Supply from S1 to D1
B) Option 2: Supply from S1 to D2
C) Option 3: Supply from S1 to D3
D) Option 4: Supply from S1 to D4