In 2021, Bud purchased two shares of common stock in a biotechnology firm. Bud paid $110 for one share and $120 for the next share. Later in the year, the company declared a 2-for-1 common stock split. What is Bud's new basis in his shares of stock? A) Two shares at $55 a share and two shares at $60 a share. B) Four shares at $57.50 a share. C) Two shares at $110 a share and two shares at $120 a share. D) Four shares at $115 a share...