A. excellent: the total score is over 90 points.
B.good: the total score is 80 ~89.
C. passing: the total score is 60 ~79.
D. failing: the total score is below 60 points.
Correct answer: excellent: the total score is over 90 points; Good: the total score is 80 ~ 89; Pass: the total score is 60 ~ 79; Fail: The total score is below 60.