现在美国是混业经营还是分业经营？

问题如下：

What was the effect of the Glass–Steagall Act in the U.S.? When was it repealed? What changes along the lines of Glass–Steagall have been made since the 2007–2008 crisis?

选项：

解释：

The Glass–Steagall Act established a separation between commercial banking and investment banking in the U.S. It prevented commercial banks from engaging in some investment banking activities, and vice versa. It was repealed in 1999. Since the 2007–2008 crisis, rules have been implemented in the U.S. to prevent commercial banks from engaging in proprietary trading.