A Saturated Sodium Carbonate Solution at 100 ^$\circ$ C Contains 45

Multiple Choice

A saturated sodium carbonate solution at 100 ^$\circ$ C contains 45.5 g of dissolved sodium carbonate per 100. mL of solution. The solubility product constant for sodium carbonate at this temperature is

A) 79.0.
B) 0.316.
C) 0.0790.
D) 36.8.
E) 316.