What Would Cause a Country to Run a Deficit in Its

What would cause a country to run a deficit in its current account?  

A)  if exports exceed imports 
B)  if imports exceed exports 
C)  if foreign currency received from exports and transfers exceeds the foreign exchange needed to pay for imports and make unilateral transfers 
D)  if foreign currency received from exports and transfers is less than the foreign exchange needed to pay for imports and make unilateral transfers