3
What impact did rapid-fire machine guns have on the course of the war?
A. They supported Allied offensives by allowing troops to move into "no-man's land."
B. They gave Germany a strong technological advantage on the Eastern Front.
C. They contributed to high casualty rates by allowing troops to attack targets miles away
D. They helped prolong the stalemate because they made it difficult for troops to advance.

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