Inpython<br/><img src="https://media.cheggcdn.com/media%2F3a4%2F3a44461d-86cc-4e5a-a74f-59a09b903ac7%2Fimage" alt="C. Define a function called only uses_letters_from() that takes two strings and returns True if the first string only contains characters that are also in the second string.