When pressed for a definition of what it is that he does as a dramaturg, both in a rehearsal hall and in the theatre at large, mark bly answers ?

I Question.

Explanation:

Mark Bly is a dramaturg, a professor and an editor. He has served as a chairperson in Arena Stage in Washington D. C. and the Yale University School of Drama. He is the founder of the Literary Managers and Dramaturgs of the Americas (LMDA).

Who is a dramaturg or what does a dramaturg do are questions that can not be answered in a tidy sentence.

Whenever such questions are asked to Mark Bly, founder of LMDA, he would answer that 'he questions.' He questions the intent of any drama or play.

So, the correct answer is 'I Question.'