For the network below, the objective is to find the length of the shortest path from node P to node G. Let dij be the length of directed are from node i to node j. Let sj be the length of the shortest path from P to node j. Which of the following equations can be used to find SG ?

• A. SG = Min {SO, SR}
• B. SG = Min {SO – dOG, SR - dRG}
• C. SG = min {SO + dOG, SR + dRG}
• D. SG = Min {dOG, dRG}