普通股4.5%，一级资本不是6%吗

问题如下：

In regard to Core Tier 1 Capital, which of thefollowing is true?

选项：

A.

Preferred stock makes up the bulk of Core Tier 1 Capital.

B.

Core Tier 1 Capital has the least-stringentrequirements for what constitutes capital.

C.

Core Tier 1 must be at least 6 percent of risk-weighted assets beginning January 1, 2015.

D.

The retained earnings is part of the Core Tier 1 Capital.

解释：

Core Tier 1 Capital to risk-weighted assets must be4.5% beginning January 1, 2015. Common stock plus retained earnings, notpreferred stock, must make up the bulk of Core Tier 1 Capital. The requirementsfor Core Tier 1 Capital are the most-stringent, not the least-stringent.