A company has provided the following data: Sales 3,000 units Sales price $70 per unit Variable cost $50 per unit Fixed cost $25,000 If the sales volume decreases by 25%, the variable cost per unit increases by 15%, and all other factors remain the same, net income will: A) decrease by $31,875 B) decrease by $15,000 C) increase by $20,625 D) decrease by $3.125