Correct Answer: Robert Koch
Subject: 2025
Explanation: <b>Key Fact</b><br>Robert Koch is not a 2025 Nobel Physiology or Medicine laureate.<br><br><b>Additional Info</b><br>Topic: Nobel Prize. The correct option is <b>C</b> — Robert Koch.<br><br><b>Why the other options are wrong</b><br><b>Option A</b>: Fred Ramsdell — not the option marked correct for this question.<br><b>Option B</b>: Shimon Sakaguchi — not the option marked correct for this question.<br><b>Option D</b>: Mary E. Brunkow — not the option marked correct for this question.<br><br><b>Exam Trick</b><br>Identify the exact concept tested, then eliminate options that contradict the definition, formula, chronology or fact in the question.<br><br><b>Final Answer</b><br>Option C — Robert Koch.