The correct answer is (a) 2.
The Rajya Sabha, also known as the Council of States, is the upper house of the Parliament of India. It is composed of 245 members, of which 233 are elected by the elected members of the legislative assemblies of the states and union territories, and 12 are nominated by the President of India. The members of the Rajya Sabha are elected for a term of six years, and one-third of the members retire every two years.
The number of seats that each state is allotted in the Rajya Sabha is based on its population. Uttarakhand has a population of 10,077,968, which is 0.57% of the population of India. Therefore, Uttarakhand is allotted 2 seats in the Rajya Sabha.
The other options are incorrect because they do not represent the correct number of seats that Uttarakhand is allotted in the Rajya Sabha.