Why is a preferred stock with a dividend tied to short-term interest rates an attractive short-term investment

Question:

Why is a preferred stock with a tied to short-term interest rates an attractive short-term investment for corporations with excess cash?

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...