Consider the following statements regarding political developments in Kerala during the 1960s:
- The second general election in Kerala was held in 1960.
- The Kerala Legislative Assembly member who first died while in office was Dr. A.R. Menon.
- The first census after the formation of Kerala was conducted in 1961.
- Kerala Legislative Assembly constituencies were changed from dual-member to single-member constituencies in 1960.
Which of the above statements are correct?
1
1 and 3 only
2
1, 2 and 3 only
3
1, 3 and 4 only
4
All of the above