The article explains the basics of options trading. A call option lets you buy a set amount of stock at a specific price within a certain time frame. A put option allows you to sell a set amount of stock at a specified price within a particular period. If the option is exercised and has a positive value, it's considered "in-the-money". Options with strike prices above the current stock price are "out-of-the-money". Long options give you the choice to buy or sell, while short options require you to do so if exercised.