Select the term from among the given options that can replace the question mark (?) in the following series.

A3J5R, E6K6S, I9L 7T, O12M8U, ?, A18010W

Given: A3J5R, E6K6S, I9L 7T, O12M8U, ?, A18010W

A3J5R, E6K6S, I9L 7T, O12M8U, ?, A18O10W

In first positions, there are consecutive vowels

In second positions, number increasing by 3

In third positions, letter is increasing by 1

In fourth positions, number increasing by 1

In fifth positions, letter is increasing by 1

In first positions, A, E, I, O, U

In second positions,

3+3=6, 6+3=9, 9+3=12, 12+3=15, 15+3=18

In third positions,

J+1=K, K+1=L, L+1=M, M+1=N, N+1=O

In fourth positions,

5+1=6, 6+1=7, 7+1=8, 8+1=9, 9+1=10

In fifth positions,

R+1=S, S+1=T, T+1=U, U+1=V, V+1=W

So, missing term =​U15N9V

Thus, correct option is (b).