On August 1, 2018, Kira purchased 100 shares of ITC stock for $5,000. There were no subsequent adjustments to her basis. On August 1, 2019, she sold 50 shares for $1,800. On August 31, 2019, she sold the other 50 shares for $3,400. Kira has a: ___________

a. Short-term loss of $200.
b. Short-term loss of $700 and a long-term gain of $900.
c. Long-term gain of $200.
d. Long-term loss of $700 and a short-term gain of $200.