please hurry

The variable costs per unit are RM4 when a company makes 10,000 units. What are the per unit variable costs when 8,000 units are produced? RM6.00 RM4.00 RM4.50 RM5.00 Costs that can be traced to a particular cost object are called direct costs indirect costs product costs O manufacturing costs Variable costs D vary indirectly with changes in activity level vary directly with changes in activity level vary on a per unit basis Ovary indirectly with changes in activity level AND vary on a per unit basis