The reason why more and newer food were equal in the 16th century was because of the explorations and the newly gained territories in South America and North America.
Once the Europeans set foot on the New World they encountered lot of plants with which they were not familiar earlier. They were plants that were very useful, good as a prime source of food, as spices, as delicacies, as additions. Because of this lot of new species of cultivated plants were introduced into Europe. This introduction of new species was very popular, so the production of food on the continent started to equal the import of agricultural products from the new world, as well as producing them on European soil.
D. the scopes trial was a trial that was trying to convict a man because he was teaching evolution in school. the fundamentalist movement was a movement about going back to old times like the bible says
(a) is the answer in studying this actually!