The verses and ideas of which one of the following personalities have been preserved in 'Panchvani' and 'Bijak'?

The compositions of Sant Kabir, the great 15th-century Bhakti poet-saint, are preserved in three main traditions: the Bijak (preserved by the Kabirpanth), the Panchvani (compiled by the Dadupanthi tradition containing verses of five saints including Kabir), and the Guru Granth Sahib. The Bijak is the sacred book of the Kabirpanthis containing his sakhis, shabads, and ramainis. Hence option (2) Kabir is correct.