A.China has a land area of 9.6 million sq.km, the third place in the world

B.China has a land area of 9.6 million sq.km, marking it the third-biggest country in the world

C.China has a land area of 9.6 million sq.km, which was the third place in the world

D.China has a land area of 9.6 million sq.km, which ranked the third place in the world