Which best describes the work done by lobbyists

Which best describes the work done by lobbyists is : they apply pressure on lawmakers to pass laws that are favorable to clients.

Lobbyists are mostly hired by businesses to persuade the legislators to vote for laws in favor of the business or the cause they work for. The work of a lobbyist is very well paid and most of the time these are people with great experience, great influence in several sectors of society.

Think of favors industries like oil industries or the tobacco industries need to keep making the big bucks.