Explanation

The historical record does not clearly attribute the introduction of a formal 'Navy system' to Hazrat Ameer Muawya (R.A). Option A is incorrect as there is no specific mention of him introducing a navy system. Option B is incorrect because while he was a military leader, his association with establishing a major naval system is not standard historical knowledge. Option D is likely correct because the introduction of such a complex system might be attributed to a different period or figure not listed.