Suppose X - M = net exports; T - G = government sector balance; and S - I = private sector balance. What relationship exists among these variables?
A) (X - M ) + (T - G ) + (S - I ) = 0
B) (X - M ) = (T - G ) + (S - I )
C) (T - G ) + (X - M ) = (S - I )
D) (T - G ) = (X - M ) + (S - I )