If you were writing a letter to the principal of your school requesting that your absences be excused while your are traveling to washington, dc to meet the president, which sentence would be written in the appropriate vocabulary and level of language?

a) i ain't never missed school for any other reason before.

b) yo, mr. principal! you need to be lettin' me be excused from school this week.

c) c'mon, mr. crankers, you know you don't want to count my absences as unexcused.

d) i would like to ask your permission to count some of my absences as excused next week.