Data on local$-$currency, U$.$S$.-$dollar, and U$.$S$.-$dollar$-$hedged returns for the Global Government Bond index and constituent markets

from $1998-2018$ indicate that, on average, currency exposure:

Select one

A$.$ Modestly increases volatility and correlation with the U$.$S$.$ market.

B$.$ More than doubles volatility and modestly increases correlation with the U$.$S$.$ market.

C$.$ More than doubles volatility and substantially decreases correlation with the U$.$S$.$ market.

D$.$ Modestly increases volatility and little impact on correction with the U$.$S$.$ market.