What will come at the place of question mark ? 8, 22, 64, 190, 568, ?

The answer is 6913.

The sequence is $a_n = 3^n – 1$.

$8 = 3^2 – 1$
$22 = 3^3 – 1$
$64 = 3^4 – 1$
$190 = 3^5 – 1$
$568 = 3^6 – 1$
$6913 = 3^7 – 1$

Therefore, the next number in the sequence is $6913$.

Option A, 1702, is incorrect because it is not equal to $3^n – 1$ for any value of $n$.

Option B, 7767, is incorrect because it is not equal to $3^n – 1$ for any value of $n$.

Option C, 6992, is incorrect because it is not equal to $3^n – 1$ for any value of $n$.

Option D, 6913, is correct because it is equal to $3^7 – 1$.