Question 8(0.5 points) Consider the following: Activity InunitsPerUnit Tota PerUnit Total PerUnit 100,000 $50,000 $0.50 $50,000 $0.50 $45,000 $0.45 200,000 100,000$0.50 50,000$0.25 60,000 $0.30 300,000 150,000$0.5050,000$0.167 75,000$0.25 Cost A Cost B Cost C Which of the costs, A, B, or C, is a variable cost