Which of the following are correct according to pecking-orde…

Which of the following are correct according to pecking-order theory?I. Firms stockpile internally-generated cash and use external financing first.II. There is an inverse relationship between a firm’s profit level and its debt level.III. Firms avoid external debt at all costs and issue it only as the last resort.IV. A firm’s capital structure is dictated by its need for external financing.