Why do industry best practices suggest using scan serif fonts (such as Arial) as opposed to serif
fonts (such as Times New Roman) for text on PowerPoint that are displayed in the virtual
classroom?

A.
Because the resolution on a computer screen is far lower than on printed materials serif fonts
can be hard for participants.

B.
Because the sans serif font contain fewer lines and angles on each letter than serif fonts, sans
serif fonts taken up less space on the slide.

C.
Recent research suggests that the extra lines and angle in the serif fonts increase cognitive
load, which can impede the learning process.

D.
Research indicates that serif fonts exacerbate color blindness, so experts suggest using sans
serif fonts on dark colors only.