Read the text and determine if the sentence is true (see options at the end):

May 12 Reserve Bank of India: * India cenbank sets underwriting commission of 0.0014 rupee per 100 rupees for 2023 bonds * India cenbank sets underwriting commission of 0.0017 rupee per 100 rupees for 2026 bonds * India cenbank sets underwriting commission of 0.0039 rupee per 100 rupees for 2034 bonds * India cenbank sets underwriting commission of 0.0044 rupee per 100 rupees for 2044 bonds Source text - (bit.ly/1WrGICx) (Bengaluru newsroom)

Sentence: Rupees are the world's most important currency.
 (a). Yes (b). It's impossible to say (c). No