Correct Answer: Pea
Subject: 2025
Explanation: <b>Key Fact</b><br>Mendel used pea plants for his genetics experiments.<br><br><b>Additional Info</b><br>Topic: Genetics. The correct option is <b>D</b> — Pea.<br><br><b>Why the other options are wrong</b><br><b>Option A</b>: Tomato — not the option marked correct for this question.<br><b>Option B</b>: Petunia — not the option marked correct for this question.<br><b>Option C</b>: Bean — 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 — Pea.