25.3 g of sodium carbonate, $Na_2CO_3$ is dissolved in enough water to make 250 mL of solution. If sodium carbonate dissociates completely, molar concentration of sodium ion, $Na^+$ and carbonate ions,$CO_3^{2-}$ are respectively (Molar mass of $Na_2CO^3$ = 106 g mol–1)

Question

( A ) 0.955 M and 1.910 M
( B ) 0.477 and 0.477 M
( C ) 1.90 M and 1.910 M
( D ) 1.910 M and 0.955 M