Consider the decadal Census data given below: Decadal Population (in millions) Population 1961 10.7 1971 14.3 1981 16.2 1991 18.9 The above data refer to which one of the ‘Population by Religion’ groups?

1. (a)Sikhs
2. (b)Jains
3. (c)Christians
4. (d)Buddhists