Nika needs sponsors for a local charity event in which she will be cycling. She decides to reach out to her father's business partner whom she has known since she was very young. What kind of letter should Nika write that is most appropriate for her intended audience?

A.
letter that is detached and stresses statistics
B.
letter that uses colorful language with amusing stories
C.
letter that is personal and emphasizes values
D.
letter that is casual and creative with images