How many professional teams are there in baseball in America?
30
4
3
4
5
3
4
2
5
3
4
2
5
3
4
2
5
3
4
2
5
3
4
2
5
3
4
2
5
3
4
7
1
2
5
3
4
7
1
2
5
3
6
4
7
1
2
5
3
6
4
7
1
2
8
5
3
6
4
7
1
2
8
5
3
6
4
7
1
2
8
5
3
6
4
9
7
1
2
8
5
10
3
6
4
9
7
1
2
11
12
0
8
5
10
3
6
4
9
7
1
2
11
12
8
5
10
0
3
6
13
4
9
7
1
2
11
12
8
5
10
3
6
13
4
9
0
7
1
2
11
12
8
5
10
3
16
6
13
4
9
7
1
2
11
12
0
8
5
10
3
16
6
13
9
7
1
2
11
12
14
8
5
10
0
16
6
13
9
7
1
2
11
12
14
8
10
16
6
13
9
0
7
1
11
12
14
8
10
16
6
13
9
7
0
66
63
144
62
59
66