Which of the Following Is a Salutopening

Multiple Choice

Which of the following is a salutopening?

A) Dear Professor Milford:
B) Dear Esteemed Professor Milford, It has come to our attention that you are interested in joining our research team in Winslow, Arizona. We think you can be a good fit!
C) Thank you, Professor Milford, for your prompt response.
D) Attention: Professor J. J. Milford