Which of the following statements are true regarding activity-based costing (ABC) and cost drivers? (1) A cost driver is any factor that causes a change in the cost of an activity. (2) For long-term variable overhead costs, the cost driver will be the volume of activity. (3) Traditional absorption costing tends to under-allocate overhead costs to low-volume products. A (1) and (3) B (2) and (3) C (1) and (2) D (1), (2) and (3)