Jerome is a dedicated and conscientious Ashford student who is concerned about the grade he earned on a recent written assignment. He would like to e-mail his instructor, Dr. Sarah Smith, with questions about his grade.
Which of the following is the BEST way for Jerome to begin this e-mail?

a. Hi Dr. Smith, can you tell me why my assignment grade is so low?
b. I have a question about my grades!
c. Sarah, what's up with my grades?
d. Hello Dr. Smith, I have a question about my grades.