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If for then is divisible by:
If $D = \begin{vmatrix} p & p & p \\ p & p+x & p \\ p & p & p+y \end{vmatrix}$ for $p \neq 0, x \neq 0, y \neq 0$ then $D$ is divisible by:
- (a)only $p$
- (b)$p$ and $x$ but not $y$
- (c)$p$ and $y$ but not $x$
- (d)$p, x$ and $y$
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From ISC 2025 Practice Mathematics, question 7.