Which statement best describes the role of the majority leaders in congress

Need on these last 2 questions on my social studies homework 5 and 6 then i’m done with the homework

The political, economic, or cultural environment that surrounds an event provides the event with its

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