What does it mean to stifle something?

To stifle something means to limit or restrain its development, expression, or growth. This term often implies suppressing an idea, feeling, or action, leading to a sense of oppression or control over that element. For example, if someone's creativity is stifled, it means that their ability to express themselves or innovate is being hindered or obstructed. Thus, the choice that captures this essence of limitation and restriction is the correct one.

The other options represent opposing actions or ideas. To release freely suggests an allowance of freedom or expression, while to encourage implies a promotion or support of growth or development. Similarly, to expand denotes an increase in size or scope, which is contrary to the notion of stifling. Therefore, the choice indicating a limitation best aligns with the definition of stifle.