Statement I is true. In India, a majority of the members of the Rajya Sabha are indeed elected by the elected members of the State Legislatures. This means that the Members of Parliament who are part of the Rajya Sabha are chosen by the State Legislative Assemblies.

However, Statement II is false. Members of the Rajya Sabha elected by the State Legislative Assemblies do not need to have their domicile in the concerned State. The only requirement is that they should be registered as voters in that state. They can be from any state and do not have to be residents of the state for which they are being elected.

Therefore, both statements are not true, and Statement II is not an accurate explanation of Statement I. The correct answer is option 3.