The emancipation and equal rights of African American's
Caribbean islands, coast of Central America, and coast of South America
The purpose of the Lewis and Clark expedition in 1804-1806 was the first American expedition to explore the west, and map the newly acquired territory. They also wanted to find a practical route, and establish themselves. Studying the wildlife - plants, animals, etc - and establish trade with local indians was also an objective of the expedition!
The Answer is clearly D.salt.
In the market place entrepeneurs compete for the dollar of the consumers. They are willing to interchange goods or sevices for money. The success or failure of an entrepreneur depends on how consumers approve or disapprove the products or services offered by entrepreneurs. If the product or service is seen as good or high quality then that entrepreneur will surely have high demand and will continue in the market place. If the product or service is seen as bad or bad quality then that entrepreneur will disappear.