A stock price is currently $23. A reverse butterfly spread (ie. options are sold with strike prices of K and K3, and two options with the middle strike price K are purchased) is created from call options with strike prices of $20, $25, and $30. Which of the following is TRUE? Select one alternative:

A. The gain when the stock price is greater than $30 is greater than the gain when the stock price is less than $20.

B. The gain when the stock price is greater than $30 is the same as the gain when the stock price is less than $20.

C. It is incorrect to assume that there is always a gain when the stock price is greater than $30 or less than $20.

D.The gain when the stock price is greater than $30 is less than the gain when the stock price is less than $20.