Answer: C. Use a mix of serif and sans serif fonts for the text.
Explanation:
The good guideline to follow regarding the use of handouts are making sure that all elements are aligned appropriately with other elements, never distribute a handout after the beginning of a presentation and by making sure that the handouts have an obvious front door and clear pathway.
The option about using a mix of serif and sans serif fonts for the text is not good. This is because the preferred font is usually Times New Roman.