The answer is C. Avoid fancy fonts
Step-by-step explanation:
Slide shows are commonly used during presentations to help the speaker remember the order and content of the presentation and guide the audience through it especially by using short texts, images, videos, etc that help the audience understand the information. Due to the importance of slideshows in presentations, these should be carefully designed, about this it is recommended to divide information in different slides, use light backgrounds, use medium or large type and avoid fancy fonts because although these might look good are difficult to read. considering this, the one that is a good guideline when designing a presentation slide show is avoiding fancy fonts.