What are very credible types of visual qids because they are true representations of evidence? a. illustrations b. diagrams c. photograhs d. powerpoint presentations

c. photograhs

Explanation:

Photographs are a very good and credible visual aid because they are a representation taken directly from reality, and people is not used to photographs being manipulated, this gives them a high credibility that it is often not found in other kind of visual aids.

answer; if congress didn't act on certain requests;