Question: plz answer this Saudi post operates a delivery service in the Riyadh. Most of its business involves rapid delivery of documents and during the business

plz answer this
Saudi post operates a delivery service in the Riyadh. Most of its business involves rapid delivery of documents and during the business day. The following network shows the street routes available. Constraint for node 4 is: 39 35 20 15 12 112 15 Select one: a. X24 - x45 - 46 0 b. x42 + x45 + x46 - X24 - x54 = 1 C. X42 + x45 +46 - X24 - X540 d. X24 - X45 - X46 =1Step by Step Solution
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