An order fulfilment process has demand for three order types during the next 2 weeks as shown in Table 2. The assignment of activities to machines and processing time for each activity are shown in Table 3. All machines are available for 80 hours per week to work on this process. i. Describe the principles of the theory of constraints. ii. Find the utilisation for each resource. iii. Identify the bottleneck. iv. Find the number of orders of each type that should be processed to maximise the total profit. v. Calculate the maximum total profit. Table 2: Orders Order Type Activities Demand Profit Margin ($) Economy 1,2, and 5 150 125 Standard 1,3,4, and 6 110 175 Luxury 2,4,5, and 6 90 200 Table 3: Activities Activity Time (minute) Machine 1 24 A 2 18 A 3 25 B 4 27 B 5 15 6 14