I believe great is an empty modifier.
Superman is a type of archetypal hero because he is a good hero, strong, that only wants the best for other people. He was a hero that cared for the people and flew around to save them. A leader believes in good and inspires others. Hope this helps:)))
B. Verb. The others just don't work.
D, because a pie chart show the subsets of a whole unit.
It is not a because that would be a Venn diagram.
It is not b because a pie chart does not include how a variable affects another variable.
And it is not c because it does not show how a variable change but it shows how much of a variable there is. <span />