explain the answer

(JIT)* --- The following statement is __: JIT production quantities fluctuate over time to meet fluctuating demands. --- The following statement is ___: JIT production quantities are small at a time to reduce inventory. (*Discuss briefly why.) A. correct, correct B. correct, incorrect C. incorrect, correct D. incorrect, incorrect (Disintermediation)* Disintermediation leads to (*Discuss briefly why.) A. more intermediaries B. higher customer contact C. warehousing D. shorter supply chain (Dell)* The order fulfillment in the Dell's supply chain is (*Discuss briefly why.) A. procure-to-order B. make-to-order C. build-to-order D. make-to-stock 4 10. (Single-Server Queues 1)* Below are arrival and service times of four single-server queues. (Hint: Mean arrrival time of 4 and mean service time of 3 are the same across all the queues.) (Queue W) Customer: 1 2 3 4 5 6 7 8 Mean Arrival times (hrs): 3 3 4 3 5 5 4 5 4 Service times (hrs): 1 5 4 2 5 2 1 3 (Queue X) Customer 1 2 3 4 5 6 z 8 Mean Arrival times (hrs): 5 4 Service times (hrs): 2 2 3 (Queue Y) Customer 1 2 3 4 5 6 8 Mean Arrival times (hrs): 5 4 Service times (hrs): 2 3 (Queue Z) Customer: 1 2 3 4 6 Z 8 Mean Arrival times (hrs): 4 7 3 5 1 2 4 6 4 Service times (hrs): 1 5 4 2 4 5 2 1 3 3 3 4 4 4 MN 5 4 5 3 4 2 3 1 4 3 2 3 NN 4 4 2 4 5 3 has the SMALLEST average flow time (W). (*Discuss briefly why.) A. Queue W B. Queue X C. Queue Y D. Queue Z