Option c is the correct answer. Gopala assumed power in approximately 750 CE after being selected by a coalition of regional chieftains. His ascension was aimed at restoring order in the region following the demise of Gauda king Shashanka, which had led to a period of turmoil and instability. Nandivarman II (Pallavamalla) (c. 731 - c. 796 CE), a Pallava ruler, governed South India. Following Parmeswara II's demise, Nandivarman was chosen through a popular election. Harshavardhan and Yashovarman were not elected by the public. They ascended the throne through inheritance.