问题如下：
As it relates to the bond indenture, the corporate trustee acts in a fiduciary capacity for:
I. bond investors
II. bond issuers
III. bond underwriters
IV. regulators
选项：
A.I only
II only
I and IV
II and III
解释：
The promises of corporate bond issuers and the rights
of investors who buy them are set forth in great detail in contracts generally
called indentures. The indenture is made out to the corporate trustee as a
representative of the interests of bondholders; that is, the trustee acts in a
fiduciary capacity for investors who own the bond issue.
老师，corporate trustee 是指信托里的管理人吗？
