Some people enjoy hobnobbing with the rich and famous.

Answer: Option A

Associating : be involved with; mix.
Chatting : talk in a friendly and informal way.
Conspiring : make secret plans jointly to commit an unlawful or harmful act.
Living : an income sufficient to live on or the means of earning it.
Hobnobbing : mix socially, especially with those of perceived higher social status.

Synonym of Hobnobbing is Associating