Step 1: Understanding the Concept:
The question asks to identify the author of the influential book "Public Opinion". This book is a foundational text in the fields of media studies and political science, exploring how public opinion is formed and manipulated.
Step 2: Detailed Explanation:
"Public Opinion" was written by Walter Lippmann and published in 1922. In the book, Lippmann argues that ordinary citizens cannot grasp the full complexity of the modern world. Instead, they form a simplified mental image, or a "pseudo-environment," which is heavily influenced by the mass media. He introduced the concept of "stereotypes" and discussed the "manufacture of consent," suggesting that public opinion can be managed by a governing elite. The other individuals listed are known for different contributions: James Curran is a contemporary media scholar, Orson Welles was a famous filmmaker (known for "Citizen Kane"), and Walter Benjamin was a philosopher and cultural critic. Walter Lippmann is the correct author.
Step 3: Final Answer:
Based on historical and literary facts, Walter Lippmann is the author of "Public Opinion". Therefore, option (D) is the correct answer.