In preorder, root comes at the beginning of the traversal sequence and in postorder, root comes at the last of the traversal sequence. So, out of the given sequences only $1$ and $2$ are having such kind of order i.e $K$ at the beginning and at the last.
Therefore, $2$ is the preorder and $1$ is postorder and the left sequence i.e $3$ will definitely be inorder.
So, option D is correct.