The foundation of Jim Crow laws was that the "African Americans are culturally and intellectually inferior to white people."
Farmers opposed the gold standard because they claimed that it would cause prices for their crops to decline. The correct option among all the options that are given in the question is the last option or option "D". This sytem of gold standard was abandoned by the government during the depression that happened during the years of 1930s.
Food (including seafood and game), crops, wild foods, and spices.
raw materials (including lumber, skins, fuel wood, organic matter, fodder, and fertilizer)
genetic resources (including crop improvement genes, and health care)
water purity.
biogenic minerals.
The main way in which the study of the classics influenced branches of learning such as history, literature, and philosophy was that many of the greatest thinkers in these subjects lived in the classical age.