[The following information applies to the questions displayed below.] Helix Company is approached by a new customer to provide 2,500 units of its product at a special price of $8 per unit. The normal selling price of the product is $10 per unit. Helix is operating at 75% of its capacity of 11,700 units. No incremental fixed overhead will be incurred because of this order. Also, there will be no incremental fixed general and administrative costs because of this order. QS 23-1 (Algo) Identifying relevant costs LO C1 Identify whether each of the following is relevant or not relevant to accepting this order. Item a. Special selling price of $8.00 per unit b. Direct materials of $1.00 per unit c. Direct labor of $2.00 per unit d. Variable overhead of $1.50 per unit e. Fixed overhead of $0.75 per unit f. Fixed general and administrative costs of $0.60 per unit