What was one of the main factors that led to industrialization in the United States?

A. The United States wanted to keep its industrial advances a secret from Europe.

B. The United States decided to make its own products after the war of 1812

C. The American agricultural system was failing because the soil was turning sticky and clay-like.

D. Americans found it expensive and time-consuming to buy finished goods from Europe.

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