From what I've seen I think they are taking all scores, I've heard from someone who got 6 100s and didn't get it, but he didn't attempt the last 2 quizes b/c he already had 6 100s.
I made 6 100's, a 98, and a 97, and a 100 on the midterm and I got it.
I made 6 100's, a 98, and a 97, and a 100 on the midterm and I got it.