36=2×18, line up 18 rows with 2 people per row, or line up 2 rows with 18 people per row;
36=3×12, line up 12 rows with 3 people per row, or line up 3 rows with 12 people per row;
36=4×9 line up 9 rows of 4 people each, or into 4 rows of 9 people each;
36 = 6 × 6 rows of 6 people each;
So 36 people can be arranged in 1 row, 2 rows, 3 rows, 4 rows, 6 rows, 9 rows, 12 rows, 18 rows, 36 rows, a **** 9 kinds of rows.
A: There are 9 different rows.