Consider the following statements,
I: If A is skew-symmetric matrix of order 3, then the matrix A4 is skew-symmetric.
II: If P = \(\begin{bmatrix} 1 & α & 3 \\[0.3em] 1 & 3 & 3 \\[0.3em] 2 & 4 & 4 \end{bmatrix} \) is adjont of 3 × 3 matrix A and ∣ A ∣ = 4, then α = 11.
III: If D = \(\begin{vmatrix} 1 & 1 & 1 \\[0.3em] 1 & 1+x & 1 \\[0.3em] 1 & 1 & 1+y \end{vmatrix}\) for x ≠ 0, y ≠ 0, then D is divisible by x but not y.
Which one of the following is INCORRECT in respect of the above statements?
1
I and II
2
II and III
3
I and III
4
I, II, and III