Correct option is C
Given: 5, 8, 13, 21, 34, 55, (...), 144, 233
This series is following the pattern of the Fibonacci sequence, where each number is the sum of the two preceding numbers:
5+8=13
8+13=21
13+21=34
21+34=55
34+55=89
55+89=144
89+144=233
So, the missing number in the series is 89.
The correct answer is (C) 89.