How many border states were there at the start of the American Civil War?
4
3
5
4
3
2
5
4
3
2
5
4
3
2
5
4
3
2
5
4
3
2
5
4
3
2
5
4
3
2
5
4
6
3
2
5
7
4
8
6
1
3
2
5
7
4
10
8
6
1
3
2
5
7
4
10
8
6
1
3
2
5
7
4
11
10
8
6
1
3
12
2
5
7
4
11
10
8
6
1
3
12
2
5
7
4
11
10
13
8
6
1
3
12
2
5
7
4
11
10
13
8
6
1
3
17
12
0
9
2
5
7
4
11
10
13
16
8
6
1
3
17
12
9
2
5
0
7
4
11
10
13
16
8
6
1
3
17
12
9
2
5
7
4
11
10
13
16
0
8
6
1
3
17
12
9
2
5
7
4
11
10
13
16
8
6
1
3
14
17
12
9
2
66
5
7
4
25
11
10
13
16
8
6
1
14
17
12
9
2
7
25
11
66
62
66
62
77
63
57
62