Answer:
The correct answer is Electing members to office
Step-by-step explanation:
Interest groups are somewhat more unoficcial politic groups even though they are formally organizated, their goal usually involves affecting any government policy to the public benefit or the groups' benefit, anyway, this groups seek this desired influence in a totally different way than political parties, because political parties want to elect their members to office to directly influence the politics according to the partys' ideology and not by lobbying government and mobilizing publics (which are ways that interest groups use to influence policy).