Step 1: Understanding the Concept:
The question requires identifying the author known for writing in the science fiction genre from the given list.
Step 2: Detailed Explanation:
\[\begin{array}{rl} \bullet & \text{Walter Scott was a Scottish novelist and poet, primarily known as the father of the historical novel. } \\ \bullet & \text{Isaac Asimov was a prolific American writer and professor of biochemistry, considered one of the "Big Three" masters of science fiction, along with Robert A. Heinlein and Arthur C. Clarke. He is famous for his Foundation series and the Three Laws of Robotics. } \\ \bullet & \text{Dan Brown is an American author best known for his thriller novels, such as The Da Vinci Code. } \\ \bullet & \text{George Eliot (the pen name of Mary Ann Evans) was a leading English novelist of the Victorian era, known for her works of realism like Middlemarch. } \\ \end{array}\]
Based on this, Isaac Asimov is the science fiction writer.
Step 3: Final Answer:
The correct answer is Isaac Asimov, option (B).