Into how many independent kingdoms did China divide after the fall of the Han Dynasty in AD 220?
3
4
4
4
2
4
2
4
2
4
5
2
4
5
2
4
5
2
4
5
2
220
4
5
3
2
4
5
220
3
2
4
6
5
3
220
2
4
6
5
3
2
220
4
6
5
3
2
4
6
5
220
3
2
4
6
5
3
220
Three
2
4
6
5
3
Three
2
220
4
6
5
3
Three
2
4
6
5
220
3
Three
2
4
6
5
3
220
Three
2
6
5
3
Three
2
220
6
5
3
Three
2
6
5
220
3
Three
6
5
3
220
Three
10
6
8
5
3
Three
10
220
6
108
8
3
Three
10
6
8
220
108
3
Three
10
6
8
3
220
Three
108
237
10
6
8
3
Six
Three
ten
10
220
6
108
8
237
Six
Three
10
6
8
ten
220
108
237
Six
Three
10
8
ten
220
Six
Three
108
237
10
8
96
249
Six
Three
ten
10
220
108
8
237
a dozen
219
249
Six
Three
four
10
8
ten
296
220
108
237
9
Three
four
96
219
10
249