Which question type seeks to understand the reason behind a concept?

The "Why question" is specifically designed to delve into the reasoning behind a concept. It prompts an exploration of the underlying principles, motivations, or justifications that explain why something is the way it is or why an action is taken. This type of questioning encourages critical thinking and deeper understanding, as it requires the respondent to articulate the rationale or cause-and-effect relationships related to the concept in question.

In contrast, "What questions" typically inquire about facts or definitions, asking for information without exploring reasoning. "How questions" often focus on the process or method of achieving something, and "When questions" deal with timing or chronology. Each of these question types serves its purpose, but the "Why question" uniquely seeks to unpack the reasons and justifications central to understanding a concept fully.