What dynasty did the manchu establish

The Qing dynasty was first established in 1636 by the Manchus to designate their regime in Manchuria (now the Northeast region of China). In 1644 the Chinese capital at Beijing was captured by the rebel leader Li Zicheng, and desperate Ming dynasty officials called on the Manchus for aid.

b or c im pretty sure

whats the question? im not quite understanding your question.