Correct Answer: Swami Dayanand Saraswati, 1875
Subject: 2025
Explanation: <b>Key Fact</b><br>Arya Samaj was founded by Swami Dayanand Saraswati in 1875.<br><br><b>Additional Info</b><br>Topic: Socio-Religious Reform Movements. The correct option is <b>A</b> — Swami Dayanand Saraswati, 1875.<br><br><b>Why the other options are wrong</b><br><b>Option B</b>: Raja Rammohan Roy, 1875 — not the option marked correct for this question.<br><b>Option C</b>: Ishwar Chandra Vidyasagar, 1855 — not the option marked correct for this question.<br><b>Option D</b>: Swami Vivekananda, 1896 — 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 A — Swami Dayanand Saraswati, 1875.