Hyponatremia can sometimes be seen in individuals whose ECF volume is decreased by more than 10%.Which of the following factors contributes to the development of hyponatremia in this situation?

A)Decreased levels of ADH
B)Elevated levels of natriuretic peptides
C)Increased excretion of Na⁺ by the kidneys
D)Reduced excretion of solute-free water by the kidneys
E)Development of positive Na⁺ balance