Doğru Cevap: 3

Açıklama: "Index hatası düzeltmesi, 3 dakikayı aşması gerekir çünkü bu süre zarfında geminin hareketinin etkisi azalmıştır." (Note: This answer is based on the principle of "Index error correction" in navigation, which states that the correction should be made after the ship has moved for at least 3 minutes to ensure the error is not affected by the ship''s movement.)