If \( A=\left[a_{i j}\right]_{4} \times 4 \), such that \( a_{i j}=\left\{\begin{array}{ll}2, & ....
If \( A=\left[a_{i j}\right]_{4} \times 4 \), such that \( a_{i j}=\left\{\begin{array}{ll}2, & \text { when } i=j \\ 0, & \text { when } i \neq j\end{array}\right. \),
\( \mathrm{P} \)
then \( \left\{\frac{\operatorname{det}(\operatorname{adj}(\operatorname{adj} A))}{7}\right\} \) is (where \( \{\cdot\} \) represents fractional part function)
(1) \( \frac{1}{7} \)
(2) \( \frac{2}{7} \)
(3) \( \frac{3}{7} \)
(4) None of these
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