please help me with the last three following questions

For a supervisor of a manufacturing department, which of the following costs is controllable? a direct materials insurance on factory building c. sales salaries Cd. depreciation of factory building Which of the following would be included in the cost of a product manufactured according to absorption costing? a, advertising expense b. office supplies costs c. sales salaries d. depreciation expense on factory building On the variable costing Income statement, the figure representing the difference between manufacturing margin and contribution marginis a fud selling and administrative expenses b. variable selling and administrative expenses a fixed manufacturing costs d. variable cost of toods sold