BB Co. had 50,000 shares outstanding on January 1, 2023. On March 1, 2023, BB issued 30,000 shares. On October 1, 2023, BB Co. repurchased and cancelled 20,000 shares. BB Co. had net income of $300,000 in 2023. What is the companys total weighted average number of shares outstanding on December 31, 2023? Select one: a. 70,000 b. 50,000 c. 25,000 d. 80,000