An entrepreneur purchases a workshop for $200000 in order to make plastic boxes. In the first year of trading, he pays $70000 for materials, hires ten production workers who are paid according to the number produced (piece rate) at a total cost of $80000, and buys two delivery vehicles at $10000 each. What is the total of his variable costs?
- A$100000
- B$150000
- C$220000
- D$370000