K is for Cat:

ella: Mom! K-K-K-Cat starts with kah, K!
mom: This is a tricky one, because sometimes the K and the C sound the same. But cat starts with C, not K. C is for Cara and C is for Cat. C-C-C-Cara and C-C-C-Cat.
ella: Oh Mom, you're all mixed up, you've got it all wrong. Cat starts with K not C.

alright whatever you say...