Which of the election system have been adopted for different elections in India?

(1) Direct Election System on the basis of Adult Suffrage.

(2) System of Proportional representation by a Single Transferable Vote.

(3) List System of Proportional Representation.

(4) The cumulative Voting system of Indirect Election.

Choose the correct answer from the given code:

I.A.S. (Pre) 1994