Detailed Explanation:

✅ Statement 1 – Correct: Thermal difference between land and water is the primary reason. Land has low specific heat capacity and heats/cools rapidly, while water has high specific heat capacity causing slow temperature changes. Coastal areas experience moderating effect from oceans, reducing annual temperature range, whereas continental interiors lack this maritime influence and show extreme seasonal variations.

❌ Statement 2 – Incorrect: Variation in altitude affects absolute temperature but does not explain the difference in annual range between coast and interior. Both regions have altitude variations.

❌ Statement 3 – Incorrect: Strong winds in the interior do not cause higher annual range; rather, coastal winds help moderate temperatures by bringing maritime influence.

❌ Statement 4 – Incorrect: Coastal areas typically receive more rainfall than continental interiors due to moisture from oceans. Rainfall does not explain higher temperature range inland.