In $20$X$4,$ Climber Corporation issued for $$110$ per share, $18,000$ shares of $$100$ par value convertible preferred stock. One share of preferred stock may be converted into three shares of Climber's $$30$ par value common stock at the option of the preferred shareholder. On December $31,20$X$5,$ all of the preferred stock was converted into common stock. The market value of the common stock at the conversion date was $$40$ per share. What amount should be credited to the common stock account on December $31,20$X$5?$

$$2,160,000$

$$1,960,000$

$$1,620,000$

$$1,800,000$