I want to know the answer to the following question:
What was a rarest rare to become a noble?
All the background I'm provided with is that "Nobles were born into a noble family, adopted by a noble family (this was abolished in 1633) or ennobled by a king or Sejm for various reasons (bravery in combat, service to the state, etc.—". Is that enough to answer the question?
Answer: yes