b$)$ The following ciphertext was obtained by encrypting the original plaintext $P$ with a Row Transposition cipher using a key K$.$ No padding was necessary. What is the original plaintext and key $K?($Hint: the $5^{th}$ character of the plaintext is $y$; Note: this question may take you a long time $-$ complete other questions before attempting a brute force attack$)$

$C=$ raayemxnpwyaaeremdpyrshna

$K=$

$P=q,$

$($write your final answers above; show calculations below$)$