Which of the following statement about Amar nayakas of Vijayanagar are Correct?

1. The Amar nayakas were military Commanders who were given territories to govern by the Raya.

2. In lieu of their Service and also to maintain their contingents, they paid in cash.

3. They maintained stipulated contingents and elephants.

4. They used to send tribute to the king annually and personally appeared in the royal court with gifts to express their loyalty.

Select the correct answer using the code given below: