By considering humans' level of understanding, multimedia and visual displays are helpful when used with text sources because "They add to our understanding of text sources."
This is because when pictures or videos are added to particular text sources or stories, readers tend to understand better what the text is saying.
For example, by describing that United States Women's football team entertainingly beat Brazil, then add a highlight video for people to see. In this case, viewers would be able to understand how the game went.
Hence, in this case, it is concluded that the correct answer is option C. "They add to our understanding of text sources."
Learn more here: https://brainly.com/question/17107400
