问题如下：
Which of the following descriptions regarding sovereign bond credit rating is most accurate?
选项：
A. Sovereign bonds issued in local currency and foreign currency has little difference in credit rating.
B. If the domestic saving base of a country is stronger, the ability to issue bonds in local currency is weaker.
C. The higher credit rating typically means higer credit quality and lower credit risk by credit rating agencies.
解释：
C is correct.
The credit rating agencies assign ratings to bonds and the highest rating means highest credit and lowest credit risk. Credit rating agencies make a distinction between bonds issued in sovereign's local currency and bonds issued in foreign currency. Thus the local currency affects the credit rating of the sovereign bonds. The national government of a country will issue the local currency bonds easier if the domestic saving base is stronger.
能解释一下B是什么原理嘛？储蓄强发债能力为什么强