ABC Company's Charter authorized 10,000 shares of Common Stock. The company issued 

2,000 shares on January 1, year 1; 

1,500 shares on July 1; year 1,

 repurchased 1,000 shares on October 1; year 1, 

 issued 500 shares on December 1, year 1.

 Questions

1. How many shares are authorized on December 31, year 1?

2. How many shares are issued on December 31, year 1?

3. How many shares are outstanding on December 31, year 1?