A) gunpowder was the invention
B.People vote directly on all government policy.
Manifest Destiny
John O'Sullivan coined the phrase "Manifest Destiny" to describe what he saw as the God-appointed duty of the United States to expand across the North American continent and to lead the world by the example of its values. O'Sullivan was editor of the <em>Democratic Review</em> and of the <em>New York Morning News</em> when editorials in both publications (in July 1845) put forth arguments for annexing Texas and the Oregon Territory. US public policy in the years that followed did essentially pursue the sort of territorial goals O'Sullivan had described, even if not always with his same spiritual ideology in mind.
Mansa Musa came to power for 50 years after Sundiata restored the wealth of Mali. In the 1300s, he conquered the Songhai kingdom. Muhammad chose the titles of Askia the Great. He was a devoted Muslim as well as Mansa Musa and they both supported education and learning. Mansa Musa had added important trade routes to cities including Timbuktu, Djonne, and Gao, adding them to his empire. Under Askia the Great, both Gao and Timbuktu flourished.
the answer is D. All of the above