Answer: The correct answer is D- the Gallup poll surveyed people from different backgrounds
Explanation: In 1936 the Great Depression was coming to an end. Many people were out of work or were very low income. The telephone was a luxury back then that many people couldn’t afford. The Literary Digest used a list of telephone and car owners, completely ignoring the unfortunates who had neither- and their prediction ended up being way off as Roosevelt won in a landslide.