Correct Answer: E
Explanation:
Solution(By Examveda Team)
This is an alternating subtraction series with repetition. There are two different patterns here. In the first, a number repeats itself; then 3 is added to that number to arrive at the next number, which also repeats.
This gives the series 17, 17, 20, 20, 23, and so on. Every third number follows a second pattern, in which 3 is subtracted
from each number to arrive at the next: 34, 31, 28.