Which would be good historical evidence when studying manifest destiny?

a)a chart showing the louisiana purchase in current dollars
b)a food log showing what settlers ate
c)a street map of new orleans
d)the louisiana purchase treaty

Interest groups representing businesses and investors are often among the most successful lobbying groups for all of the following reasons, except a. such groups have the financial resources to mount sustained campaigns on their own behalf b. these groups' members contribute heavily to many legislators' campaigns and in so doing gain greater access to legislators c. these groups have often been in existence for decades, allowing them to both master the legislative system and develop close ties with legislators d. the members of these groups make up the majority of voters in many districts

What is an ethic enclave? i have tried google and did my own research but i can't find exactly what i am looking for

Ais a group of people living and working under a set of rules an traditions.