2. When the price of all inputs increase by the same percentage, A) the firm's total cost curve will rotate upward by a higher percentage if the firm's production technology exhibits decreasing returns to scale. B) the firm's total cost curve will rotate upward by the same percentage. C) the firm's total cost curve will rotate upward by a higher percentage if the firm's production technology exhibits increasing returns to scale. D) the firm's total cost curve will remain unchanged since the cost-minimizing combination of inputs is unchanged