Concept:The Rajya Sabha is the upper house of Indian Parliament. Most of its members are elected indirectly by state legislatures using proportional representation.
Explanation:Option A is correct.
Members of Rajya Sabha are elected by elected members of state legislative assemblies and union territory legislatures.
The voting system is proportional representation by single transferable vote.
This ensures that parties get seats proportional to their strength in the assembly.
Each state gets a fixed number of seats based on its population.
Option B is wrong. The Deputy Chairperson of Rajya Sabha is elected by its own members, not nominated by the President.
Option C is wrong. The Lok Sabha can be dissolved before its five-year term ends, for example by the President on advice of the Prime Minister.
Option D is wrong. Members of Lok Sabha do not vote in Rajya Sabha elections. Only elected members of state assemblies and union territory legislatures vote.
Thus, only statement A is correct.
Answer:A majority of members of Rajya Sabha are elected by a system of proportional representation by means of single transferable vote (Option A).