Step 1: Understand relationship
A lawyer is related to a judge as a person practicing law is related to the person who judges in a court.
Similarly, an actor performs for an audience.
Step 2: Analyze options
- Crowd is a general group of people, but audience specifically watches a performance.
- Director is a different role related to a play or film.
- Stage is the place of performance, not a person.
- Audience are the people who watch the actor perform.
Thus, the correct relation is Actor : Audience.