Explanation:

Let’s break down the series:

38, 39, 43, 52, 70, 93, 129

- Let’s look at the differences between numbers:

  39-38 = 1

  43-39 = 4

  52-43 = 9

  70-52 = 18

  93-70 = 23

  129-93 = 36

- The differences are: 1, 4, 9, 18, 23, 36

- These don't fit a simple pattern like perfect squares or doubling.

- Let's check consecutive differences:

  4-1 = 3

  9-4 = 5

  18-9 = 9

  23-18 = 5

  36-23 = 13

- The jump from 9 to 18 seems off. Let’s try replacing 70 with another value in sequence.

- If we try 52 + 11 = 63 (since previous difference increments in 1, 3, 5...), the series:

  38, 39(+1), 43(+4), 52(+9), 63(+11), 86(+23), 122(+36) – makes the sequence follow the difference of squares/odd numbers.

- Therefore,

  Option 1: 70 is the wrong number.

  All other options fit the intended pattern.