Correct Answer: Plants
Subject: 2025
Explanation: <b>Key Fact</b><br>Plants are biotic components of an ecosystem.<br><br><b>Additional Info</b><br>Topic: Ecosystem. The correct option is <b>B</b> — Plants.<br><br><b>Why the other options are wrong</b><br><b>Option A</b>: Water — not the option marked correct for this question.<br><b>Option C</b>: Sunlight — not the option marked correct for this question.<br><b>Option D</b>: Soil — 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 B — Plants.