Explanation:

To solve the series, let's examine the pattern:

- Start with 164.

- Increase by 8 to get 172.

- Decrease by 27 to get 145.

- The pattern seems to alternate between adding and subtracting.

Let's calculate the difference for the unknown number:

- Follow the sequence: $164\to 172\to 145\to ?\to 84$

- From 145 to 84: Subtract 61 (by observing the next number 84)

Now verify:

- The alternation suggests increasing after 145,

- Calculate: Add back the last subtraction (145 + 61 = 206).

- Re-check: More consistent and logical with series sequence than others.

Based on this analysis, none of the options perfectly fit the calculated position. Thus