argument是after being released form prison, inmates who had taken such courses committed far fewer crimes overall than other inmates.
是说读书可以减少犯罪,注意,不是不读书可以增加犯罪
A:不读书不会减少犯罪,这是在反驳政府的观点,但是并没有支持作者的观点;
C:读书人在读书之前不比别人少犯罪的可能,而 after being released form prison, inmates who had taken such courses committed far fewer crimes overall than other inmates,这个说明是读书起到了减少犯罪的作用,不是因为这些人本身就老实,排除他因!