The correct answer is option 3, which is 30 years. To become a member of Rajya Sabha, the minimum age requirement is 30 years. This means that a person must be at least 30 years old to be eligible to be a member of Rajya Sabha. Rajya Sabha is the upper house of the Parliament of India, and its members are elected by the members of the State Legislative Assemblies. It is important to note that the minimum age requirement can vary for different positions and qualifications. In this case, the minimum age requirement for Rajya Sabha membership is 30 years.