Read the paragraph. (1) in the 1940s, heroes such as superman and g. i. joe had perfect morals and character. (2) they stood for ideals that we hoped we could achieve. (3) in modern society, however, heroes tend to be troubled outcasts or accidentally heroic. (4) heroes today, unlike those of the past, must have a flawed character in order to become popular. what is the topic sentence of the paragraph? sentence 1 sentence 2 sentence 3 sentence 4