The Rise of Empress Wu to the Tang Throne Tells

The rise of Empress Wu to the Tang throne tells us what about Chinese society?

A) The Tang readily permitted women to obtain political authority.
B) Women had more rights under the Tang dynasty than they had previously.
C) Though women held little political power in China, they could obtain authority through marriage and familial relations.
D) The Chinese were beginning to abandon Confucianism, which prohibited women from obtaining positions of power.