Correct Answer: (b) Confession by monks of their offences committed during their stay in the monasteries during the rainy season.
Solution:During four months of the rainy season, the desciples of Buddha live in Buddha Mahavihar. During this season, they stop preaching their religion. After the rainy season, they again start preaching with a welcoming ceremony called Pavarana. In this ceremony, the monks, confess their offences and discuss future work plan.