Let N be the set of natural numbers. The sets
$$\begin{aligned}
& C = \{ 2 n : n \in \mathbb { N } \} \\
& K = \left\{ n ^ { 2 } : n \in \mathbb { N } \right\}
\end{aligned}$$
are given.\\
Accordingly, which of the following is an element of the Cartesian product set
$$( \mathrm { K } \backslash \mathrm { C } ) \times ( \mathrm { C } \backslash \mathrm { K } )$$
?\\
A) $( 3,2 )$\\
B) $( 9,4 )$\\
C) $( 15,1 )$\\
D) $( 16,12 )$\\
E) $( 25,8 )$