Which of the following statements on the Amaravati Stupa and its relief sculpture is/are correct?

1. It was located in the lower Krishna valley.

2. In India, it was next only to the Sanchi Stupa in size.

3. The Amaravati school of sculpture made a lasting impact on the later South Indian sculpture, and its products were carried to Sri Lanka and South-east Asia.

Select the answer using the code given below:

1. (a) 1 only
2. (b) 1 and 3 onlyCorrect answer
3. (c) 2 and 3 only
4. (d) 1, 2 and 3

Answer: (b)