Which of the following lists accurately describes the major motivations for European exploration during the 15th and 16th centuries?
A. The desire to spread Islam, curiosity about new lands in the
Americas, and the need of wealthy merchants to continue trade
B. The need for new trade routes to the east, the desire to spread
Christianity, and competition between European countries
C. The desire to find new goods to trade, the construction of faster
ships, and the need to learn American farming techniques
D. The need for new technologies, the desire to help indigenous
peoples in the Americas, and competition within the Ottoman
Empire

The correct answer should be B

Explanation:

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain

in the 1800s, chinese workers migrated to the united states, first to work in the gold mines, but also to take agricultural jobs, and factory work, especially in the garment industry. chinese immigrants were particularly instrumental in building railroads in the american west, and as chinese laborers grew successful in the united states, a number of them became entrepreneurs in their own right. as the numbers of chinese laborers increased, so did the strength of anti-chinese sentiment among other workers in the american economy. this finally resulted in legislation that aimed to limit future immigration of chinese workers to the united states, and threatened to sour diplomatic relations between the united states and china.