Interest groups can influence public policy because

a. try to get their members elected whom they expect to vote along the party platform on issues

b. lobby the members of legislative committees to convince them to vote a certain way on bills

c. have considerable power in influencing judicial decisions on difficult civil and criminal trials

d. select who will serve as advisors to the members of the executive and legislative branches

B. lobby the members of legislative committees to convince them to vote a certain way on bills

Explanation:

An interest group is a group of people, organized around a common interest, in order to act jointly in defense of it. It is called a pressure group when that group seeks to influence public opinion.

Its political activity is distinctive of other categories because they try to intervene in the political subject from outside of this, that is, indirectly. Often interest groups are public knowledge, such as trade unions, employers' organizations, large companies, professional associations, NGOs, etc.

Most modern societies recognize the legitimacy of interest groups and regulate the modalities of their actions, so that they do not affect the way in which political decision-making is regulated in each country. A characteristic modality of the institutional channeling of interest groups, with the economic and social councils that exist in several countries. It is common for interest groups to carry out a particular activity on the public authorities called lobby, in order to try to influence the public decision-making process in their favor.

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an early twentieth-century ad for model home blueprints