Which of the following was a direct result of the development of agriculture? A. Populations decreased as the food source was less reliable. B. Permanent settlements were developed for the first time. C. Societies began to embrace a more nomadic lifestyle. D. Diseases spread as people started to trade with one another.

B.

A is wrong because: Planting food and having a steady harvest time and regular schedule for it is more reliable than

C is wrong because: Seeing as people would have been encouraged to stay where they were as to wait for the food to grow, they wouldn't want to move around as much. It makes more sense for them to drop their nomadic lifestyle and settle down on good land to farm.

D is wrong because: People had been trading each other for a long, long time before the development of agriculture. This has nothing to do with it.