Answer:
An expansionary monetary policy by the Federal Reserve would lead to an increase in the demand for US assets and a depreciation in the value of US dollars.Hence the correct answer is option D) or increase;depreciate.
Step-by-step explanation:
An expansionary monetary policy commonly entails expansion of money supply thereby reducing the eventual interest rate in order to boost or stabilize the Aggregate Demand(AD) and overall output level or GDP in the economy.Now,as the domestic interest would fall in US due to the expansionary speculations and inflationary indications(increase in money supply),it would consequently lower the value of the US dollars relative to other foreign currencies.This implies that US dollar would depreciate compared to other foreign currencies.This possibility would encourage the importers and international investor or financiers to become more attracted towards the US goods,services and financial assets thereby increasing their demands.Therefore,a depreciation of US dollars would essentially lead to an increase in the demand for US assets in the international market as depreciation of US dollars would also lower the value of US assets in the international market.