a)\"product cost per unit" for 01 and 02 under the \"absorption (full) costing\" method (showing the xed and variable parts of the cost) b)\"product cost per unit\" for 01 and 02 under "marginal (variable) costing" c) the fixed and variable parts of selling and administration overheads d)a \"contribution statement" for 01 and 02 under marginal (variable) costing