b is the most probable answer to that question
It would be the population increased. The Neolithic Revolution was the period in which people, at the time mostly nomads, gradually adapted a sedentary lifestyle, leading to population increase.
:)
Gibbons v. Ogden,was a landmark decision in which the Supreme Court of the United States held that the power to regulate interstate commerce, granted to Congress by the Commerce Clause of the United States Constitution, encompassed the power to regulate navigation. The case was argued by some of America's most admired and capable attorneys at the time. Exiled Irish patriot Thomas Addis Emmet and Thomas J. Oakley argued for Ogden, while U.S. Attorney General William Wirt and Daniel Webster argued for Gibbons.
Military conquests by the Arab Empire and traders of Islamic faith were the primary means for spreading Islam to Africa, Europe, and Asia. I think its this one
