Option c is the correct answer. Gopala was the founder of the Pala dynasty, ruling in the 8th century CE. He established the dynasty in the regions of Bihar and Bengal. Gopala's reign began around 750 CE. He was chosen to rule by a group of regional chieftains to bring an end to the chaotic state of affairs prevalent after the death of Gauda king Shashanka. Gopala's reign laid the foundation for the Pala dynasty's prominence in the region.