estion 26 of 75. 2018, Marlene purchased two shares of common stock in a biotechnology firm. Marlene paid $70 for one share and $90 for the next share. Later in the year, the mpany declared a 2 for 1 common stock split. Marlene's new basis in the stock shares is Average of four shares at $40 a share Two shares at $70 a share and two shares at $90 a share. Four shares at $160 a share. Two shares at $35 a share and two shares at $45 a share Mark for follow up