The Soko Cell Phone Company offers five cell phone plans. Plan A is $9.99 fixed charge per month and each minute is $0.50 with zero free time. Plan B is $19.99 fixed charge per month with the first 100 minutes free and each minute in excess of 100 costing $0.40. Plan C is $39.99 fixed charge per month with the first 250 minutes free and each minute over 250 costing $0.30. 1 Plan D is $79.99 fixed charge per month with the first 1,000 minutes free and each minute in addition costing $0.20. Plan E is $159.99 fixed charge per month with unlimited calls at no extra cost. Create a worksheet that allows a person to enter in a name, select the plan, and enter the number of minutes used in a month. The worksheet should calculate the total bill for the month with the following results: a) Fixed charge incurred b) Chargeable number of minutes (taking into account any free minutes) c) Unit charge per minute applicable d) Variable charge incurred due to chargeable number of minutes e) Total charge incurred Create the following test cases: John A 7 minutes, Luis B 80 minutes, Carla B 120 minutes, Shruti C 300 minutes, Omar D 1200 minutes, Suzanne E 2400 minutes