(a) Explain the relationship between custom, option, and standard goods and services related to project, job shop, flow shop, and continuous flow processes. (3 marks) (b) A company is launching an assembly line to produce vacuum cleaners. They want to use the assembly line balancing techniques and have hired you as operations manager to help. They know the demand per hour is 80 units, and the productive time per hour is 45 minutes. The following table represents the data that has been obtained regarding task precedence relationships and times. Task Predecessors Time (in minutes) 0.47 A none B 0.3 A B D B E F 0.09 0.12 0.35 0.2 0.56 0.25 0.35 0.5 G B, C E D, E F,G H H I J H K 0.35 I.J i. Compute the cycle time. (1 mark) ii. Compute the theoretical minimum number of workstations (1 mark) ini. Apply the longest-task-time heuristic to balance the assembly line. (2 marks) iv. Compute the assembly-line efficiency. (1 mark) (Total 8 marks)