D is corrent. An increase in governmental spending causes an increase in domestic interest rates and international capital inflows. These capital inflows cause the domestic currency to appreciate, which has a negative effect on net exports.
A is incorrect. An expansionary monetary policy will have a positive effect on net exports.
B is incorrect. An expansionary fiscal policy would have a negative effect on net exports.
A is incorrect. An expansionary monetary policy will have a positive effect on net exports.
