attempts of interest groups to curry favor with public officials, in which of the following ways have interest group tactics changed in recent years?...

Regarding the attempts of interest groups to curry favor with public officials, in which of the following ways have interest group tactics changed in recent years?

There is less direct bribery or entertaining through alcohol and sex. Lobbyists have less direct interaction with legislators. Lobbyists do less manipulation of actual written legislation. Lobbyists have become less specialized in which issues or subjects on which they seek to curry favor for their position.