问题如下：
In most countries, the bond market sector with the smallest amount of bonds outstanding is most likely the:
选项：
A. government sector.
B. financial corporate sector.
C. non-financial corporate sector.
解释：
C is correct.
In most countries, the largest issuers of bonds are the national and local governments as well as financial institutions. Thus, the bond market sector with the smallest amount of bonds outstanding is the non-financial corporate sector.
most country就是发展中国家 因为发展中国家非金融债券更多 所以选b 对吗？