The best reason to use bold font is:
A. To emphasize something important.
Using bold font helps draw attention to specific information or key points in a document. It makes the text stand out and can guide the reader's focus to the most critical details. For example, in a set of instructions, using bold font for important steps can help users easily identify what actions they need to take.
In summary, bold font is effective for emphasizing important information and enhancing readability by highlighting key points.
