Question 23 Which of the following costs are variable? Cost 10,000 Units 30,000 Units 1. $100,000 $300,000 2. 40,000 240,000 3. 90,000 90,000 4. 50,000 150,000 O 1 and 4 only 1 only 2 O 1 and 2 Click if you would like to Show Work for this question: Open Show Work