In the question given below, two words are paired which have a certain relation. Select the correct option to substitute question mark so as to make a similar relationship pair with the word given after double colon (::)
Lok Sabha: Meera Kumar:: Rajya Sabha:?
The head of Lok Sabha is the Speaker, Ms. Meera Kumar. The chairperson of Rajya Sabha is the VicePresident of the country, Mr. Hameed Ansari.