The correct answer is: A. Phil Zimmermann.
Phil Zimmermann is an American computer programmer and cryptographer who created Pretty Good Privacy (PGP), a free and open-source encryption software package. PGP allows users to encrypt and sign data and communications. It is widely used for email security, data backup, and file sharing.
Tim Berners-Lee is a British computer scientist who is best known as the inventor of the World Wide Web. He is also the co-founder of the World Wide Web Consortium (W3C), an international organization that develops web standards.
Marc Andreessen is an American computer programmer and entrepreneur. He is the co-founder of Netscape Communications Corporation, which developed the first widely used web browser. He is also the co-founder of the venture capital firm Andreessen Horowitz.
Ken Thompson is an American computer scientist who is best known for his work on the Unix operating system. He is also the co-author of the B programming language, which was the predecessor to the C programming language.
In conclusion, the correct answer to the question “Who created Pretty Good Privacy (PGP)?” is A. Phil Zimmermann.