With reference to the Eastern and Western Ghats, which of the following statements is/are correct? 1. The highest peak of the Eastern Ghats lies in Andhra Pradesh. 2. Compared to the Eastern Ghats, the Western Ghats are lower in elevation and are not continuous. 3. The height of most mountain valleys is more than 3 km in the Western Ghats. 4. The Eastern and Western Ghats meet each other at the Nilgiri hills. Select the correct answer using the code given below: