How Should the Color of the Solution Change as [Fe(CN)₆]^4-

Multiple Choice

How should the color of the solution change as [Fe(CN) ₆]^4- undergoes the following chemical change? [Fe(H₂O) ₆]²⁺(aq) + 6CN^-(aq) → [Fe(CN) ₆]^4-(aq) + 6H₂O(l)

A) The solution should change from yellow to blue.
B) The solution should change from blue to yellow.
C) The solution should not change color.
D) The solution should become colorless because H₂O is a colorless liquid.
E) It is impossible to tell without performing a measurement.