Explanation:

Correct opion is 1

Given Series: 5, 7, 9, 11, 18, ? 34, 35, 59, 67
The given series is a combination of two different series. And, the difference between each pair of numbers from the left of the series is calculated to design the series.
First Series: 5, 9, 18, 34, 59
The pattern followed here is: (2)2, (3), (4), (5)2
Second Series: 7, 11, ? 35, 67
The pattern followed here is:
[Difference between each pair of numbers multiplied by 2]
Hence, the correct answer is "19".