which of the following is the primary purpose of intrest groups?which of the following is the primary purpose of intrest groups?which of the following is the primary purpose of intrest groups?which of the following is the primary purpose of intrest groups?which of the following is the primary purpose of intrest groups?which of the following is the primary purpose of intrest groups?which of the following is the primary purpose of intrest groups?which of the following is the primary purpose of intrest groups?which of the following is the primary purpose of intrest groups?which of the following is the primary purpose of intrest groups?which of the following is the primary purpose of intrest groups?