Tendai Buddhism, Brought to Japan from China by the Monk

Tendai Buddhism, brought to Japan from China by the monk Saichō, taught what?

A) That only through the rejection of the material world could one find nirvana
B) That all living beings share Buddha's nature and can be brought to salvation
C) That Buddha's secret teachings contained the secrets to enlightenment
D) That only intense meditation can help one achieve salvation