c) Write a ‘C’ program to calculate the electricity bill using if..elseif, as per the following details * Given the number of units consumed, unit charges are as follows: i) For first 50 units Rs. 0.50/unit ii) For next 100 units Rs. 0.75/unit iii) For next 100 units Rs. 1.20/unit iv) For unit above 250 Rs. 1.50/unit * Add fuel surcharge 20% and Govt. Tax 10% on bill to calculate the total bill.