An imperial complex of religious buildings situated in the southeastern part of central Beijing. The complex was visited by the Emperors of the Ming and Qing dynasties for annual ceremonies of prayer to Heaven for a good harvest.
I want to say #3 but I’m not 100% sure
They Adopted Greek Culture by the Following:
1)Their Food
2)Their Clothing
3)Their Beliefs
This plan was called the "Open Door Policy". This policy was proposed by the USA in 1899. Under this, all western nations would have equal opportunities to trade in China. Thiss was in support of Chinese territorial and administrative integrity. It lasted for 40 years and it became the foundation for the American foreign policy in East Asia at that time.