How many of Robert Caro's books won a Pulitzer Prize?
2
1
1
1
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
2
3
4
2
3
4
2
3
4
3
4
3
4
3
4
3
5
4
1 & 2
3
5
4
3
5
4
3
5
0
1 & 2
4
3
5
0
4
3
5
4
0
5
1 & 2
4
5
0
4
5
6
0
4
7
1 & 2
5
6
4
0
7
5
6
4
1 of his books
7
5
6
0
1 & 3
2 of his books
4
2 & 2
2 & 3
1 & 2
7
5
6
0
4
3 of his books
7
1 & 1
5
6
4
0
1 & 3
7
5
6
2 & 2
2 & 3
1 & 2
1 of his books
7
5
6
2 of his books
1 & 1
1 & Two
7
5
6
1 & 3
7
5
6
2 & 2
2 & 3
1 & 2
1 & 1
7
1 & Two
5
6
8
1 of his books
2 of his books
7
No
5
6
8
1 & 3
1 & 2
2 & 2
7
No
2 & 3
6
1 and 2
1 & 1
8
1 & Two
One
7
No
6
8
1 & 2
1 of his books
No. 1
One
7
No
6
1 and 2
1&2
8
1 & 3
1 & 1
2 & 2
1 & Two
2 & 3
9
One
7
No
No. 1
1 & 2