There are several types of supporting material that you can pull from the sources you find during the research process to add to your speech. They include examples, explanations, statistics, analogies, testimony, and visual aids.
Explanation:
B. Napoleon's invasion of Russia in 1812 was a complete disaster,
the bitter cold of winter wiping out hundreds of thousands of
troops, all for nothing.
The answer is A so it can fly longer
Christopher Reeve uttered this statement "What else is there left for Superman to do that hasn't been done" because he believed that Superman is extraordinary compared to the other known American superheroes. This is because Superman is born innately extraordinary unlike the other heroes.
B
the overall message the author is trying to convey throughout the story