Which of the Following Is a Proposed Explanation for the Flynn

Which of the following is a proposed explanation for the Flynn effect?

A) People are getting worse nutrition in their diets now than ever before.
B) The modern world is becoming increasingly global and simplified, requiring fewer learning and problem-solving skills.
C) Modern popular culture has become more challenging for consumers than in previous generations.
D) The percentage of people with degrees in higher education has decreased in recent decades.
E) The amount of education required for jobs has decreased for both men and women.