Which one of the following statements are correct:

A. Khotan was a very important centre of Jainism.

B. Yaudheyas are mentioned in Panini's Ashṭādhyāyi.

C. Coins attributed to the Malava tribe have been discovered in large numbers at Nagar.

D. The Mälava coins bear legends.

E. The Nāgas were serpent-worshipping tribes of Ancient India.

Choose the correct answer from the options given below: