I believe the answer 3 goes with paragraph 1, answer 1 goes with paragraph 2 and finally answer 2 goes with paragraph 3.
This is because there is a difference and when saying a lobbyist is the actions does not make since- so it would have to be lobbying. Further more- the other answers just fit in since A person is a lobbyist since an interest group is more than one person and a lobbyist makes more sense than the previous answer. Finally and interest group is the name of the given organization since an organization is a group of 2 or more people working together.