The correct option is B Involved his son in trade
Guru Nanak Ji's father, was concerned about him and wanted to guide him towards the issues and responsibilities of the real world. Therefore, he gave the responsibility of grazing buffaloes on the farm. But Guruji abandoned the animals and started praying to god. Another approach that he tried was to involve his son in trade. So, he gave young Nanak Ji twenty rupees and told him to go to town and do a profitable business. This time, Nanak Ji spent the money to feed a group of hungry fakirs and returned home empty-handed. When his father asked regarding the money, Nanak Ji replied that he had done ‘Sacha Sauda’ or ‘true bargain.