Final answer:
World War II highlighted educational disparities and prompted improvements in U.S. education levels, including through the GI Bill, which may have affected Assemblies of God members. However, specific data about the Assemblies of God's educational levels during this time is not provided in the historical materials given.
Step-by-step explanation:
World War II shone a light on the educational levels within various sectors of American society. The Assemblies of God were no exception, and historical context suggests that, across the board, the war exposed educational disparities and pushed for an increase in educational attainment within the U.S. population. The explicit concern about the educational levels within Assemblies of God mentioned in the options provided is not directly answered in the historical documents provided. However, it is noteworthy that overall efforts such as the GI Bill greatly enhanced educational opportunities for returning servicemen, leading to a dramatic increase in the U.S. workforce's education level, raised productivity, and by extension, likely included members of the Assemblies of God.
However, the materials given do not specifically address which of the statements (a, b, c, or d) is accurate regarding the Assemblies of God, and without additional information directly related to this religious movement during the period, one cannot confirm the assertion about the Assemblies of God's educational levels during the era of World War II.