D because it includes more information than the others and is more professional
Answer:
I will but I want you to have an amazing day
Explanation:
Thanks
<3
The answer is B. Because, if the students had the flu, of course their absence was 'legitimate', which means 'acceptable', allowed. And 'aberration' means 'something unusual or unexpected", because they usually have perfect attendance, but now they missed a couple of classes.