The mark

I got an assessment back in class Tuesday night—got a D on it. As I am sure you would understand, it kind of freaked me out. All kinds of thoughts ran through my head: Maybe I don't belong here, maybe a Master's degree isn't for me, is it too late to drop, etc.

Then I heard a person sitting near me asking another classmate about her D. The classmate replied that it was a D for Distinction, the second highest mark you can get.