Solve, 2, 3, 5, 8, 12, ?, 23

Option 2 is the right answer.

Reason-

If we look at the series given in the question then we find that the order of the digits is ascending in the form of like this –
2+0 = 2
2+1 = 3
3+2 = 5
5+3 = 8
8+4 = 12
12+5=17
17+6+23

so the answer is 2,3,5,8,12,17,23