20 g of non-electrolyte, non-volatile solute `(C_(x)H_(2x)O_(6))` when dissolved in 100 gm water at `100^(@)C`, lowers the vapour pressure of solution by `(1)/(100)`th of the vapour pressure of pure water at this temperature. What is formula of the compound ?
A. `C_(6)H_(12)O_(6)`
B. `C_(12)H_(24)O_(12)`
C. `C_(44)H_(88)O_(44)`
D. `C_(3)H_(6)O_(3)`