The correct answer is: Both I and II follow.
The statement “A bird in hand is worth two in the bush” means that it is better to have something that you are sure of than to hope for something that you may not get. This can be interpreted in two ways:
- We should be content with what we have. This is because what we have is certain, while what we do not have is uncertain.
- We should not crave for what is not. This is because what we do not have may never be ours, and even if it is, it may not be as good as what we already have.
Therefore, both conclusions I and II follow from the statement.