Recent Studies Show That When Investors Control Exchange Risk by Using

Recent studies show that when investors control exchange risk by using currency forward contracts to hedge,

A) international bond portfolios outperform domestic bond portfolios.
B) international bond portfolios dominate domestic stock portfolios in terms of risk-return efficiency.
C) international bond portfolios outperform domestic bond portfolios,and also dominate domestic stock portfolios in terms of risk-return efficiency.
D) none of the options