Suppose that the trade balance, the income balance and the net unilateral transfers are all different from zero. In that case, the current account in period t can be obtained by which of the following equations (only one is correct):

a) CAt = GNDIt - GNEt

b) CAt=GNIt - GNEt

c) CAt=GDPt - GNEt

d) CAt=GNDIt + GNEt

e) CAt-GDPt= GNEt

f) CAt=GNIt + GNEt

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