Which of the following statements is true?

According to the principles of Taoism, one should never cut one's hair or get a tattoo.

Chinese gardens include hierarchical features, but lack rigid rules such as longitudinal axiality.

The five materials associated with feng shui are metal, earth, water, wood and fire.

The Yizhen Temple, Xi'an demonstrates diversity of Chinese architecture because it is easily distinguishable from other, non-Islamic architectural monuments.

The Chinese term jian means both city and walls of a city.

The teachings of Confucianism, which emphasize hierarchy, influenced traditional architecture and urban planning in China.