Which of the following is an example of stage direction?
Group of answer choices

Act I. Morning-room in Algernon's flat in Half-Moon Street.

[Lane is arranging afternoon tea on the table, and after the music has ceased, Algernon enters.]

The room is luxuriously and artistically furnished. The sound of a piano is heard in the adjoining room.

Algernon. Did you hear what I was playing, Lane?