Final answer:
Document design techniques to improve readability include headings, white space, and typefaces/fonts.
Therefore, the correct answer is D. All of these choices.
Step-by-step explanation:
Document design techniques to improve readability include:
- Headings for visual impact: Using headings can help break up the text and make it easier to navigate. Headings also draw attention to important information.
- Use of white space: Including white space around text and images can improve readability and make the document less cluttered.
- Typefaces and fonts: Choosing appropriate typefaces and fonts can enhance readability. Clear, legible fonts are easier to read than complicated or decorative ones.
Therefore, the correct answer is D. All of these choices.