Haridan Co. uses activity-based costing. The company has two products, A and B. The annual production and sales of Products A and B are 8,000 units and 6,000 units, respectively. There are three activity cost pools, with estimated total cost and expected activity as follows:

Expected Activity

Activity Cost Pool

Estimated Cost

Product A

Product B

Total

Activity 1

$20,000

100

400

500

Activity 2

37,000

800

200

1,000

Activity 3

91,200

800

3,000

3,800

What is the overhead cost per unit for Product A under activity-based costing?

$18.53

$5.94

$6.60

$21.46