This bar graph shows the percentage scores for 11 multiple choice questions taken by 3 students (A, B, C). Student A scored highest on the first question at 90% but their scores decreased on subsequent questions, leveling off around 40-50% on the last questions.

1. 90%
Question 1
80%
Question 2
70%
Question 3
60% Question 4
50% Question 5
40% Question 6
30% Question 7
20% Question 8
10% Question 9
0% Question 10
Question 11
A B C