Answer:
The quotation from the interview that offers details that best support Ingersoll's belief that many art disciplines "unite in the theatre" is:
"Then the stage must be prepared, and there is work for the architect, the painter and sculptor."
Explanation:
According to what Ingersoll said in this interview, theater holds a special place among the arts precisely because it is capable of uniting several art disciplines. He goes on to explain <u>there is work for the poet, the architect, the painter, the sculptor, the actors, the musicians. All of those people, and more, are necessary to make a good play, to properly build the world that will engage and entertain the audience. Theater involves the senses, feelings and emotions of the audience. To make it a memorable experience, people who specialize in different areas are necessary. Think of the set, the costumes, the script.</u>
Having that in mind, we can choose the following quotation as the answer:
"Then the stage must be prepared, and there is work for the architect, the painter and sculptor."
