Developmental and social psychology are areas of study that are one of the American psychological association's foundational areas of contemporary psychology.
Meriwether Lewis and William Clark helped open the American frontier to settlement by exploring the regions further out west. They mapped these territories and found accessible routes, so that Americans could move further out west and settle the land before the Europeans could claim it. There was also a smaller objective of studying the science and possible economic qualities.
Answer:
C.
Explanation: It cant be option A because agriculture is not the most important in the economy. Hope it helped :)
The answer is D. If you're weak you wouldn't need to exactly curse or anything haha