With reference to Indian history, which of the following is/are the essential element/elements of the feudal system? 1. A very strong centralized political authority and a very weak provincial or local political authority 2. Emergence of administrative structure based on control and possession of land 3. Creation of lord-vassal relationship between the feudal lord and his overlord Select the correct answer using the code given below.

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