The diet of medieval Europe was poor. It was mostly meat and bread, leeks, garlic, onions, cabbage and a few root vegetables. The Crusaders were impressed by the variety: rice cooked in many ways, lamb or chicken; lentils and other vegetables cooked in olive oil, and delicious sweetmeats and fruit. Rice was an important addition to the European diet. The Islamic Civilization also taught the growing techniques for cherries, peaches, apricots, and gooseberries. Choice D is the correct answer.