let S be a set of 5 digit numbers formed by the digits 1, 2, 3, 4 and 5 using each digit exactly once such that exactly 2 odd positions are occupied by odd digits. what is the sum of the digits in the rightmost position of the numbers of S?please tag me while explaining the answer... thank you..

1) 228
2) 216
3) 294
4) 192