: its foreign assets are growing slower than its foreign liabilities.Marshall-Lerner condition is that the payments deficit will be improved as a result of currency depreciation only if_ .A:the sum of elasticity of demand for goods import and that for goods export  is larger than one. B:the sum of elasticity of demand for goods import and that for goods export equals one. C:the sum of elasticity of demand for goods import and that for goods export is less than one. D:the sum of elasticity of demand for goods import is greater than that for goods export.