With reference to the history of India, consider the following statements regarding the Gupta empire:
1. They were feudatories of Kushanas.
2. Belonged to the Vallabhi era.
3. This period was dedicated to the extensive use of iron.
Which of the above statements is/are correct ?
1
1 and 2 only
2
1 only
3
2 and 3 only
4
All of the above