Which method would NOT be effective for a critic participating in a public debate about art?

Engaging in private conversations with the artist during a public debate would not be effective for a critic aiming to convey their viewpoints to a broader audience. A public debate thrives on interactive and observable discourse, where ideas and critiques can be shared openly, fostering dialogue and understanding among attendees. By speaking privately, the critic misses the opportunity to share their insights and perspectives with the audience, which is essential for the purpose of a public debate.

In contrast, writing a public review, talking with the audience, and leading a panel discussion all serve to promote engagement and communication in a public setting. These methods allow the critic to articulate their opinions, respond to questions, and participate in a constructive exchange of ideas, thus fulfilling the objective of a public debate.