Explanation:

- Option 1: Not punishable

- Correct answer.

- Void agreements lack legal enforceability. They are not seen as punishable since they hold no legal standing from the start.

- Option 2: Punishable

- Incorrect. Punishment applies when laws are broken. Void agreements do not break laws; they simply aren't legally binding.

- Option 3: Prohibited

- Incorrect. Prohibited means forbidden by law. Void agreements are not necessarily forbidden; they just don't hold legal weight.

- Option 4: Illegal

- Incorrect. Illegal actions violate the law. Void agreements are legally ineffective, but not necessarily illegal.