What skill is required to display assertive communication behavior?AUsepower wordsBUse of bad languageCSilenceDBoldness

To display assertive communication behavior, the most relevant skill among the given options is A. Use power words.

Assertive communication involves expressing oneself effectively and standing up for one's point of view while also respecting the rights and opinions of others. Power words can help in conveying messages with confidence and clarity, making an impact in conversations. It allows individuals to express their needs and opinions firmly without being aggressive or submissive.

While boldness (option D) can contribute to assertiveness, it is more about how one presents themselves rather than the choice of words they use. Using bad language (option B) and silence (option C) do not align with assertive communication, as they can lead to misunderstandings and can be perceived as either hostile or passive.

Therefore, the knowledge and application of power words enhance assertive communication significantly.