Which characteristic is true about the letters of the Sans Serif B-point alphabet?

The characteristic that is true about the letters of the Sans Serif B-point alphabet is that they have the same thickness. This feature is a defining aspect of sans serif typefaces, which are designed without the small projecting features (or "serifs") at the ends of strokes found in serif fonts. As a result, all strokes in these letters maintain a uniform thickness, contributing to a clean and modern appearance. This uniformity is beneficial for readability and legibility, making sans serif fonts popular in various design applications.

In contrast, decorative flourishing is not a characteristic of sans serif but rather of more ornate script or serif styles. The consistency in stroke thickness distinguishes sans serif from other typeface variations that may include varying widths or incorporate straight and curved lines differently. Thus, recognizing the uniform thickness in sans serif designs emphasizes their minimalist aesthetic and practical usage in contemporary typography.