Explain why the valuation models for a perpetual bond, preferred stock, and common stock with constant dividend

Question:

Explain why the valuation models for a perpetual bond, preferred stock, and with constant payments (zero growth) are virtually identical.

Common Stock
Common stock is an equity component that represents the worth of stock owned by the shareholders of the company. The common stock represents the par value of the shares outstanding at a balance sheet date. Public companies can trade their stocks on... Dividend
A dividend is a distribution of a portion of company’s earnings, decided and managed by the company’s board of directors, and paid to the shareholders. Dividends are given on the shares. It is a token reward paid to the shareholders for their...