Question 23 is based on the problem and EXCEL spreadsheet below: Below is the spreadsheet based on the LP model for Cool Dorm Design, Inc. featured in questions 3 and 4 above. A B D E Cool Dorm Design 1 2 3 Beds Desks 4 Total Profit: Number to make: Unit profit: 5 30 40 6 4 7 Constraints: Used Available 8 Carpentry 6 4 36 9 Varnishing 8 40 10 Desk demand 1 8 23. Using cell references, what EXCEL formula should be entered in cell E5 to compute total profit? a. =SUMPRODUCT(B4:B5, C4:05) b. ESUMPRODUCT(B4:C4, B5:C5) c. =SUMPRODUCT(B4:04, B8:09) d. None of the above