In which of the following elections, the system of Proportional Representation with single transferable voting has been provided ? (i)President and vice Prersident (ii)Speaker (iii)Rajya Sabha (iv)Chairman of State Legislature Council

• A. 1 and 2 only
• B. 1 and 3 only
• C. 2 and 3 only
• D. 1, 3 and 4 only