Porter has the following stock transactions: Feb 16th: Purchased 50 shares of XYZ for $300 (equivalent to $6 per share) Sept 1st: Sold 30 shares of XYZ for $100 (equivalent to $3.33 per share) Sept 28th: Purchased 30 shares of XYZ for $110 (equivalent to $3.67 per share) What is the recognized cost or basis for XYZ stock purchased Sept 28 th? $0 $30 $190 $110