Really need help at the end part real quick

Mr. Tiger owns 10,000 shares of Southern Corporation common stock, which he purchased on March 8, 2011, for $330,000. On October 3, 2018, Tiger purchases an additional 4,000 shares for $120,000. On October 12, 2018, he sells the original 10,000 shares for $320,000. On November 1, 2018, he purchases an additional 3,000 shares for $88,500. Read the muirements. Requirement a. What is Mr. Tiger's recognized gain or loss as a result of the sale on October 12, 2018? Amount Gain or loss u Gain or loss to be recognized $ 3.000 loss Requirement b. What are the basis and the holding period of the stock he continues to hold? (Do not round interim calculations. Only round the amount you input in the input eld to the nearest dollar.) Basis Holding period begins 4,000 purchased on October 3, 2018 $ 124,000 March 8, 2011 3,000 purchased on November 1, 2018 $ 91.500 March 8, 2011 Requirement c. How would your answers to Parts a and b change if the stock Tiger purchases during 2018 is Southern nonvoting, nonoonvertible, preferred stock instead of Southern common stock? Are nonvoting, nonconvertible preferred stock substantially identical to common stock in the same corporation? Under this scenario, would Tiger recognize a gain or a loss? Under this scenario, what is the amount that Tiger would recognize