Final answer:
The author suggests that George Bernard Shaw was a highly talented playwright who influenced the theater significantly, making statements b) and d) likely to align with their view.
Step-by-step explanation:
Based on the passage provided, the author would most likely agree with the statement that George Bernard Shaw was a highly talented playwright who challenged societal norms with his thought-provoking comedies. It is also clear that Shaw had a significant influence on the theater, as he is described as one of the premier playwrights of the 20th Century, indicating that his contributions were well-recognized and far from debatable. Therefore, the author of the passage would likely agree with the statements (b) George Bernard was a highly talented playwright and (d) George Bernard's contributions to the theater were debatable, with the support being that they were 'nondebatable' due to his recognized influence and legacy.