(c) Amer's T-shirts manufacture and prints customised designs on T-shirts. Below is a list of some of their major costs. (i) Cost of daily radio advertising on the local community radio station (ii) Cost of the fabric used to make the T-shirts (iii) Cost of the ink used in the designs (iv) Salary of the managing director (v) Wages of the production employees who sew and print the T-shirts (vi) Cost of movie tickets provided for the employee of the month award each month (vii) Depreciation of the sewing machines, calculated on a units of production basis (viii) Cost of electricity used in the factory building (ix) Rent of the building (x) Wages of the staffs who package the T-shirts For each cost indicate whether it is engineered, committed or discretionary costs.