The main source of external funding employed when major American corporations contain expanded their operations in the precedent three decades has been: (1) Borrowing from commercial banks. (2) Selling the record amounts of latest corporate stock. (3) Borrowing via issuing corporate bonds. (4) Investing retained earnings (that is, income not paid out as dividends to the stockholders. (5) Borrowing from the governmental agencies.
Can someone please help me in finding out the accurate answer from the above options.