Answer: The right answer is the A) Peter Brook.
Explanation: Just to elaborate a little on the answer, it can be added that Andrew Lloyd Webber (b. 1948) is a British composer and Langston Hughes was an American writer, so options B and D can be discarded. Peter Brook is a film and theatre director, and the author of the book The Empty Space. He has received many awards—including various Tony and Emmy Awards—and has directed numerous Shakespeare plays. He is regarded as one of the best living theater directors.