If the ratio of the sum of m and n terms of an arithmetic progression (AP) is 2m - 2 and 2n - 1, then what is the ratio of the mth term and the nth term?
1) 2m - 2 : 2n - 1
2) 2m - 1 : 2n - 2
3) 2m - 2 : 2n + 1
4) 2m + 1 : 2n - 2