Correct Answer: Jannik Sinner
Subject: 2025
Explanation: <b>Key Fact</b><br>Jannik Sinner is the marked winner of the 2025 Australian Open men’s singles title.<br><br><b>Additional Info</b><br>Topic: Tennis. The correct option is <b>D</b> — Jannik Sinner.<br><br><b>Why the other options are wrong</b><br><b>Option A</b>: Roger Federer — not the option marked correct for this question.<br><b>Option B</b>: Rafael Nadal — not the option marked correct for this question.<br><b>Option C</b>: Carlos Alcaraz — 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 D — Jannik Sinner.