Which of the following securities transactions would result in a short term capital gain?
I Purchase 100 shares of ABC stock at $50 on January 2, 2017; Sell 100 shares of ABC stock at $60 on July 2, 2017
II Purchase 100 shares of ABC stock at $50 on January 2, 2017; Sell 100 shares of XYZ stock at $60 on July 2, 2017
III Purchase 100 shares of ABC stock at $50 on January 2, 2017; Sell 100 shares of ABC stock at $60 on January 3, 2018
IV Purchase 100 shares of ABC stock at $50 on January 2, 2017; Sell 100 shares of XYZ stock at $60 on January 2, 2018
A. I only
B. III only
C. I and II only
D. III and IV only