Which of the following was not one of the reasons for the popularity of Buddhism in China?

The life of purity followed by the immigrant Indian Buddhists and their Chinese Disciples attracted the Chinese to Buddhism

The patronage of the reigning dynasties in China (e.g. Wei dynasty) helped the cause of Buddhism

There were no rival religions at the time of introduction of Buddhism in China

The writing of such people as Mou-tseu created confidence in the minds of the educated chinese