5. John Dow has constructed the incomplete time-phased MPS record shown. On hand Q=130 Suppose an additional order of 40 units for week 4 just arrived (in addition to the 50 units). Which of the following is true: a. The order can be promised and the available to promise in week 1 becomes 49 and in week 3 is zero. b. The order cannot be promised c. The order can be promised and the available to promise in week 1 becomes 14 and in week 3 is zero. d. The order can be promised and the available to promise in week 6 becomes 10 and in week 3 is zero. e. Only 30 units of the 40 can be promised