Parents of the pupils of the Park Primary School must pay an amount for outfits for the annual play. All pupils take part in the play, except the Grade 0 pupils. The amount that the parents have to pay is calculated as follows: The cost of the outfits for Grade 1 and 2 pupils is R45. The cost of the outfits for Grades 3 to 5 is R65. Grade 6 and 7 pupils may play one or two roles. If they play a lead role, they may only play one role. The cost of the outfits is R70 if they play one role. If this role is a lead role, the cost is R100. If they play two roles, the cost is R130. Use a switch statement and write down ONLY the necessary C++ statements to calculate and display the amount to be paid or display an appropriate error message if required. Do NOT write a complete program. Use the following variables: int grade; int fee; bool lead role; //true if a child plays a lead role bool roles2; //true if a child plays 2 roles Assume that values have been assigned to these variables already.