Well a digression is a temporary departure from the main subject in speech or writing. So because the person writing the paragraph getting ill last year has nothing to do with this years cookie sale, I think you are correct, sentence 3 is an example of a digression. So D is the answer.
I check it one more time before i turn it in then i start my next activity
The definition of a meter: Distance traversed in vacuum by light in 1/299,792,458 of a second.
<span>According to this light travels 299,792,458 meters in a second. A nanosecond is 1 billionth of a second so light travels 299792458 / 1,000,000,000 meters in a nanosecond or 0.299792458m. (In a vacuum).</span>
