The correct answers are B) death of the emperor and C) invasions.
The two reasons for the fall of the Ming Dynasty were the death of the emperor and invasions.
In the middle of the 17th century, the reserves pf silver considerably diminished in the Ming empire and people started to suffer from hunger. The Emperor did nothing to alleviate the situation and the people got angry at him. The Jurchen people, now called the Manchu, declared war against the Ming Emperor. The leader of the Manchu was Nurhaci. Ming Emperor, Chongzhen, hanged himself, and the combination of this, internal discontent, and invasions, ended the Ming period.