B. The Qing wanted to help unify the country and thought adopting existing ideas and the dominant culture would help with this
This option encapsulates the strategic approach of early Qing rulers, such as Kangxi, who recognized the importance of integrating into the established cultural and bureaucratic framework of China to maintain stability and unify the diverse populations within their empire. By adopting Han culture and government systems, the Qing aimed to legitimize their rule and foster acceptance among the Han majority.