Become more common
(that is how species learn to live in an environment over time)
The author's purpose for including this paragraph is to explain the resistance that Branch Rickey willingly took on in an effort to being the process of ending segregation in Major League Baseball. This paragraph serves to explain that there were people off the field who also helped revolutionize the game.
Answer:
C) Ministers and Priests
Explanation:
If this sounds like a valid answer to you go for it, but, a lot of authors stories don't fall into the expectations of the ministers and priests. They have a religious expectation, and if it is not the plot they desire, it may end up going against their beliefs. (Also if this is based on a passage I'm dead)