When did Genghis Khan captures the capital of the Jin Dynasty (China) ?

A. 1214
B. 1215
C. 1216
D. None of these

With the help of Chenyu Liu, one of the top officers who betrayed Jin, as well as the Southern Song, who wanted revenge on Jin, Genghis defeated the Jin forces, devastated northern China, captured numerous cities, and in 1215 besieged, captured and sacked the Jin capital of Yanjing (modern-day Beijing).