The cremation of the Jurchen nobles of the Jin dynasty mainly used wooden coffins, wooden boxes or stone letters to gather the ashes. Cremation was performed in the Jurchen of the Jin dynasty ~ DC line. However, the cremation cemetery graves in the Jinyuan area in the early Jin dynasty and after the mid Jin dynasty There are essential differences between the various types of cremation tombs, the former is a legacy of Jurchen old customs, and the latter has been influenced by Buddhism. Buddhism has become very popular among Han people after the Jurchens occupied the Yellow River basin in the middle and late Jin Dynasty. The burial custom of the Jurchen nobles has been Sinicized. Which of the following, if true, best supports the above conclusion? ['Buddhism held a very important position among the Jurchen nobles of the Jin Dynasty.', 'Cultural exchanges between the Jurchen and Han ethnic groups in the Jin Dynasty are frequent.', "Buddhism's influence on the Jurchen nobles of the Jin Dynasty is not only reflected in the funeral customs.", 'The influence of Buddhism on the burial customs of the Jurchen nobles of the Jin Dynasty occurred under the exchange with the Han culture.']