Select the term from among the given options that can replace the question mark (?) in the following alpha-numeric series to make it logically complete.

3Z6, 8Y12, 15X18, 24W24, 35V30, ?

Given: 3Z6, 8Y12, 15X18, 24W24, 35V30, ?

3Z6, 8Y12, 15X18, 24W24, 35V30, ?

Logic: first number is increasing by 5, 7, 9, ……….and its double difference is 2.

Letter is decreasing by 1.

Second number is increasing by 6.

3+5=8, 8+7=15, 15+9=24, 24+11=35, 35+13=48

Z-1=Y, Y-1=X, X-1=W, W-1=V, V-1=U

6+6=12, 12+6=18, 18+6=24, 24+6=30, 30+6=36

So, 48U36 is the missing term.

Thus, correct option is (c).